くちがた 口堅い Show inflections LinksSentence search for 口堅いSentence search for くちがたいSentence search for 口固いKanji details for 口 and 堅Edit in JMdict I-adjective (keiyoushi)1. discreet; tight-lippedOther forms口固い 【くちがたい】 Discussions Log in to talk about this word.