〜がたい

Meaning

「がたい」 is written 「難い」, meaning "difficult." Indicates that, even if one tries, it is psychologically or morally hard to do. As in 「信じ難い」 (hard to believe) or 「理解し難い」 (hard to understand), it describes difficulty accompanied by resistance.

Examples

彼の身勝手な言い分は、到底受け入れがたい。 His selfish arguments are utterly unacceptable.
あれほど慎重な彼が失敗するとは、信じ難い話だ。 It is hard to believe that someone as cautious as him would fail.