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ALL LEVELS・N1–N5
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4,238words (N1–N5 total)
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N1
不可解
ふかかい
Refers to a matter whose reason or meaning cannot be understood no matter how one tries. It is a formal word used in expressions like 「不可解な行動 (incomprehensible behavior)」「不可解な事件 (an inscrutable case)」「不可解な発言 (an inscrutable remark)」. 「解」 means "to solve, to understand", with the original sense being "cannot be solved". It is used for matters that cannot be explained within the bounds of logic or common sense, and is widely used in mystery novels, crime reports, and character assessments.
AI-generated translation
N1
不覚
ふかく
Refers to a failure caused by negligence or unexpected circumstances, or to the appearance of failing to suppress one's emotions. Used in expressions like 「不覚を取る (to suffer an unintended defeat)」「不覚にも涙ぐむ (to find oneself tearing up unawares)」. 「覚」 means to be aware or self-conscious, with the original sense being a state in which "self-awareness is lacking". It is used broadly, from the defeats of warriors to ordinary lapses in attention.
AI-generated translation
N1
不可侵
ふかしん
Refers to something that cannot be encroached upon from outside, or that must not be encroached upon. It is a formal word used in expressions like 「不可侵条約 (a non-aggression treaty)」「基本的人権は不可侵だ (basic human rights are inviolable)」「不可侵の領域 (an inviolable domain)」. 「侵」 means "to encroach", with the original sense being "cannot be encroached upon". It is used for territory and sovereignty between states, and for important rights such as human rights and dignity, appearing frequently in contexts of international law, constitutions, and ethics.
AI-generated translation
N1
不可分
ふかぶん
Refers to two or more things being so closely connected that they cannot be separated. It is a formal word used in expressions like 「不可分の関係 (an inseparable relationship)」「権利と義務は不可分だ (rights and duties are inseparable)」「不可分一体 (an indivisible whole)」. 「分」 means "to divide", with the original sense being "cannot be divided". It is used broadly for not only physical separation but also for the indivisibility of concepts and relationships, and appears frequently in legal, philosophical, and policy contexts.
AI-generated translation
N1
俯瞰
ふかん
Refers to looking down from a high place. By extension, it refers to grasping a matter holistically from a wide-angle perspective. Used in expressions like 「町を俯瞰する (to overlook the town)」「俯瞰的な視点 (a bird's-eye view)」. 「俯」 means to bow one's face, to face downward; 「瞰」 means to look down. It is used widely, from geographical looking down to the comprehensive grasp of discussions or situations.
AI-generated translation
N1
不朽
ふきゅう
Refers to remaining without decay forever, an appearance in which value or fame is not lost even with the long passage of time. It is a formal word used in expressions like 「不朽の名作 (an immortal masterpiece)」「不朽の名声 (undying fame)」「不朽の業績 (an imperishable achievement)」. 「朽」 means to rot and collapse, and the original sense is "not rotting". It is used widely in contexts that praise the enduring value of works of art, accomplishments, and monumental figures. It is often used for evaluations that continue to be passed down even after death.
AI-generated translation
N3
拭く
ふく
wipe. To remove dirt or moisture using cloth or paper. Example: 「机を拭く」 (to wipe a desk), 「汗を拭く」 (to wipe off sweat).
AI-generated translation
N4, N5
吹く
ふく
blow. For wind to move. Example: 「風が吹く」 (the wind blows). Also used to mean blowing air out from the mouth.
AI-generated translation
N1
不遇
ふぐう
Refers to being in an unfortunate position in which one cannot obtain status or treatment that matches one's talents and efforts. Used in expressions like 「不遇な晩年 (an unfortunate later life)」「不遇をかこつ (to lament one's misfortunes)」. 「遇」 means to meet or be received, and the word refers to a state of "not being able to encounter favorable circumstances". It is used widely in contexts describing the sorrow of capable people who are not recognized by the world.
AI-generated translation
N4
複雑
ふくざつ
A state where things are intricate and hard to understand. The antonym is「簡単（かんたん）」(simple).
AI-generated translation
N4
復習
ふくしゅう
To study something one learned once again. The antonym is 「予習」 (preparing before a lesson).
AI-generated translation
N3
複数
ふくすう
Being two or more. Example: 「複数の意見」 (multiple opinions). The antonym is 「単数」 (singular).
AI-generated translation
N1
服する
ふくする
Refers to obeying rules, orders, or duties and acting accordingly, or to placing oneself in a certain state. Used in expressions like 「刑に服する (to serve a sentence)」「喪に服する (to be in mourning)」. The character 「服」 carries the sense "to obey", expressing the act of accepting an order, norm, or situation. It is used in formal contexts such as law, ceremony, and the military.
AI-generated translation
N1
不屈
ふくつ
Refers to not yielding to any hardship or adversity. It is a formal word used in expressions like 「不屈の精神 (an indomitable spirit)」「不屈の闘志 (an indomitable fighting spirit)」「不屈の意志 (an indomitable will)」. 「屈」 means to bend or submit, and the original sense is "not bending". It is used widely in contexts that praise figures who endure adversity to pursue their goals, appearing frequently in biographies, sports reports, and memorial writings. It is an evaluative word strongly tinged with praise.
AI-generated translation
N1
伏兵
ふくへい
Refers to soldiers hiding and lying in wait so as not to be detected by the enemy. Used in expressions like 「伏兵に襲われる (to be attacked by an ambush)」「予選の伏兵 (a dark horse in the preliminaries)」「思わぬ伏兵 (an unexpected dark horse)」. Originally a military term, it is also used in daily life in the metaphorical sense of "an unexpected strong opponent or obstacle". It is used widely in contexts of competition such as sports, elections, and business, in situations where an unknown entity displays unexpected strength.
AI-generated translation
N3
含む
ふくむ
To hold something inside, including it. Example: 「税金を含んだ値段」 (a price including tax). Also used to mean putting something in one's mouth, as in 「口に含む」 (to hold in one's mouth).
AI-generated translation
N1
覆面
ふくめん
Refers to covering and concealing one's face with cloth or the like, or such a covering itself. By extension, it refers to a state in which one's identity or whereabouts are hidden. Used in expressions like 「覆面強盗 (a masked robber)」「覆面取材 (undercover reporting)」. 「覆」 means to cover, 「面」 means the face; together they directly express "covering the face". It is used in diverse contexts such as crime, investigative journalism, and the covert operation of police patrol cars.
AI-generated translation
N3
無事
ぶじ
Being safe, with no accident or illness. Example: 「無事に着いた」 (arrived safely).
AI-generated translation
N3
不思議
ふしぎ
mysterious. Something puzzling that cannot normally be explained. Example: 「不思議な出来事」 (a mysterious event).
AI-generated translation
N2, N3
不自由
ふじゆう
Lacking necessary things or freedom, and being troubled by it. Example: 「お金に不自由しない」 (not lacking money). Also used for the body not moving as one wishes, as in 「目が不自由だ」 (visually impaired).
AI-generated translation
N1
不詳
ふしょう
Refers to something whose details are unknown. Used in expressions like 「身元不詳 (unknown identity)」「作者不詳 (author unknown)」. It is a formal expression used in news reports, official documents, and records for items whose information cannot be verified. 「詳」 means detailed, and 「不」 added to it indicates the state of "details unknown".
AI-generated translation
N1
不祥事
ふしょうじ
Refers to disgraceful incidents that damage trust or honor, caused by organizations or people in positions of responsibility. Used in expressions like 「企業の不祥事 (a corporate scandal)」「不祥事が発覚する (a scandal comes to light)」「相次ぐ不祥事 (a series of scandals)」. 「祥」 means "auspicious, fortunate", and the original sense is "an inauspicious event". It refers broadly to incidents involving legal or ethical violations, or matters drawing social criticism, and is used frequently when such matters are reported as organizational problems. It tends to point to misconduct in positions of public responsibility rather than to an individual's private failings.
AI-generated translation
N1
腐心
ふしん
Refers to wearing out one's mind in continual contrivance in order to accomplish something. It is a formal word used in expressions like 「資金繰りに腐心する (to rack one's brains over financing)」「経営再建に腐心する (to rack one's brains over corporate restructuring)」「対応に腐心する (to wrestle with how to respond)」. 「腐」 conveys the image of "worrying until one's mind rots", expressing effort accompanied by mental anguish. It is a formal word stating in measured fashion the appearance of grappling earnestly with difficulty, and is used widely in business and political contexts.
AI-generated translation
N1
風情
ふぜい
Refers to a deeply felt charm or flavor. It is a word expressing traditional Japanese aesthetics, referring to feelings drawn from natural scenery, old townscapes, gestures, or the changing seasons. Used in expressions like 「秋の風情 (the charm of autumn)」「風情のある宿 (an inn with character)」「風情を楽しむ (to enjoy the atmosphere)」. In addition, when attached to a word referring to a person, as in 「私風情 (someone like me)」「子供風情 (a mere child)」, it has a secondary usage carrying the meaning "a worthless person like ~", expressing either humility or contempt.
AI-generated translation
N3
防ぐ
ふせぐ
prevent. To keep a bad thing from happening. Example: 「事故を防ぐ」 (to prevent an accident). Also used for blocking an enemy or wind and rain, as in 「寒さを防ぐ」 (to keep out the cold).
AI-generated translation
N1
伏字
ふせじ
Refers to concealing portions of text that cannot be expressed and indicating them with symbols such as 〇 or ×. Used in expressions like 「伏字にする (to render as bowdlerized text)」「実名を伏字で表記する (to indicate a real name with placeholder symbols)」. 「伏」 means to conceal, 「字」 means character; together they express "concealing characters". It is a specialized term in printing and editing, used for reasons of censorship, discretion, or editorial considerations, in contexts of news reporting and publishing.
AI-generated translation
N1
不測
ふそく
Refers to something that cannot be foreseen. Used in expressions like 「不測の事態 (an unforeseen situation)」「不測の事故 (an unforeseen accident)」. 「測」 means to measure or predict, and 「不」 added to it expresses the state of "cannot be predicted". It refers to sudden, unexpected events, and is used widely in crisis management and news reporting.
AI-generated translation
N3
不足
ふそく
shortage. Not being enough. Example: 「睡眠不足」 (lack of sleep), 「人手不足」 (labor shortage).
AI-generated translation
N1
不遜
ふそん
Refers to lacking modesty and being arrogant. Used in expressions like 「不遜な態度 (an arrogant attitude)」「不遜極まりない (utterly arrogant)」. 「遜」 means to be modest, and 「不」 added to it expresses the state of "not being modest". It is often used as a critical, negative evaluation.
AI-generated translation
N2, N3
舞台
ぶたい
stage. A raised platform for presenting plays, dances, etc. Example: 「舞台に立つ」 (to stand on stage). Also used to mean the setting/background of a story, as in 「京都を舞台にした小説」 (a novel set in Kyoto).
AI-generated translation
N1
不退転
ふたいてん
Refers to seeing through to the end a resolve once made, never turning back. Originally a Buddhist term meaning not retreating from a stage attained in spiritual practice. As in 「不退転の決意 (a resolve never to retreat)」「不退転の覚悟 (steadfast determination)」, it combines with words emphasizing resolve and readiness. It is used widely in politicians' policy speeches and in important public commitments.
AI-generated translation
N3
双子
ふたご
twins. Two children born from the same mother at the same time.
AI-generated translation
N3
再び
ふたたび
again. Once more. Example: 「再び会う」 (to meet again). This is a literary word; in spoken language, 「また」 is normal.
AI-generated translation
N4
豚肉
ぶたにく
Pork meat. Also called 「ポーク」.
AI-generated translation
N3
普段
ふだん
Always, usually. Example: 「普段の生活」 (everyday life), 「普段着」 (everyday clothes).
AI-generated translation
N4
部長
ぶちょう
At a company, etc., the person who leads a department.
AI-generated translation
N4
普通
ふつう
A state of being not special, the same as usual.
AI-generated translation
N2, N3
ぶつかる
ぶつかる
To collide with force. Example: 「車が壁にぶつかる」 (a car crashes into a wall). Also used when opinions conflict or schedules overlap, as in 「意見がぶつかる」 (opinions clash), 「日程がぶつかる」 (schedules conflict). 「ぶつかる」 is used when something strikes against something else, while 「ぶつける」 is used when a person makes something strike: compare 「車が壁にぶつかる」 with 「車を壁にぶつける」.
AI-generated translation
N1
払拭
ふっしょく
Refers to wiping something clean and removing it. Rather than physical situations of wiping away stains, it is used much more often metaphorically for completely dispelling distrust, anxiety, doubts, or bad impressions. As in 「不信感を払拭する (to dispel distrust)」「イメージを払拭する (to dispel an image)」「疑念を払拭する (to dispel doubts)」, it typically takes abstract objects. Both 「払」 and 「拭」 mean "to wipe away, to remove", forming a compound that stacks two characters to emphasize the meaning.
AI-generated translation
N1
払底
ふってい
Refers to a state in which supplies, funds, or personnel have hit bottom and almost nothing remains. It is a formal word used in expressions like 「人材が払底する (talent runs out)」「在庫が払底する (stock runs out)」「資金が払底する (funds are exhausted)」. 「払」 means to sweep away, 「底」 means the bottom or the point where something runs out; together they create the image of "sweeping right down to the bottom". It is rarely used in everyday conversation, and is biased toward formal styles such as reports on the economy, industry, or administration.
AI-generated translation
N3
筆
ふで
A tool for writing characters or painting, made by bundling hair together. Example: 「筆で書く」 (to write with a brush). 「筆が速い」 is also used as a metaphor for writing quickly.
AI-generated translation
N4
太る
ふとる
To gain weight. The antonym is 「痩せる」 (to lose weight).
AI-generated translation
N4
布団
ふとん
futon. Something laid out or draped over oneself when sleeping.
AI-generated translation
N4
舟
ふね
boat. A small vehicle that moves over water. The homophone「船」is also used for large ones, while「舟」is often used for small ones.
AI-generated translation
N1
腐敗
ふはい
Refers to things rotting. Or, it refers to organizations or politics becoming corrupt through moral decay. Used in expressions like 「政治の腐敗 (political corruption)」「腐敗した食品 (rotten food)」「腐敗が進む (corruption advances)」. The original meaning is the spoiling of food and other things by microbial action, but from there the word is also used broadly as a metaphor for the collapse of an organization from within due to private greed. In the metaphorical sense, it is used widely in contexts that criticize bribery, abuse of authority, and moral decline.
AI-generated translation
N1
不抜
ふばつ
Refers to a will that is extremely strong and does not waver no matter what. It is a formal word used in expressions like 「堅忍不抜 (firm endurance and steadfastness)」「不抜の精神 (an indomitable spirit)」, almost always as a component of four-character idioms. 「抜」 means to pull out; its original sense is "cannot be pulled out". It expresses a state in which one's will or conviction is firm and not easily moved, and is used in formal styles, speeches, and personal mottoes.
AI-generated translation
N3
部品
ぶひん
Each individual piece that makes up a machine, etc. Example: 「車の部品」 (car parts).
AI-generated translation
N3
部分
ぶぶん
part. A section within a whole. Example: 「壊れた部分」 (the broken part). The antonym is 「全体」 (the whole).
AI-generated translation
N1
侮蔑
ぶべつ
Refers to looking down on and despising another. It is a formal word used in expressions like 「侮蔑のまなざし (a contemptuous gaze)」「侮蔑を込めた言葉 (words steeped in contempt)」「侮蔑の対象 (an object of contempt)」. Both 「侮」 and 「蔑」 mean "to belittle", and the compound expresses a strong feeling of contempt. It is synonymous with 「軽蔑」 and 「侮辱」, but 「侮蔑」 is more written-language in character, combining strength of feeling with hardness of style. It is used widely in literary works, criticism, and the narrative prose of novels.
AI-generated translation
N1
普遍
ふへん
Refers to applying in common to all things — a quality of validity that holds broadly regardless of era, region, or subject. It is a formal word used in expressions like 「普遍的な真理 (a universal truth)」「普遍の原理 (a universal principle)」「普遍性 (universality)」. 「普」 means widely spreading, 「遍」 means reaching everywhere; together they emphasize "extending broadly over the whole". It appears frequently in contexts of philosophy, ethics, and science where universality is discussed, and is an important concept that forms a pair with 「特殊 (the particular)」.
AI-generated translation
Vocabulary data on this site is based on the JMdict/EDICT project (© Electronic Dictionary Research and Development Group, CC BY-SA 4.0). JLPT level classification is our own assessment using AI (Claude) and is not an official JLPT standard.