おとな 大人じみる Show inflections LinksSentence search for 大人じみるSentence search for おとなじみるSentence search for 大人染みるKanji details for 大 and 人Edit in JMdict Ichidan verb, Intransitive verb1. to grow up; to become adult; to start behaving like an adultOther forms大人染みる 【おとなじみる】 Discussions Log in to talk about this word.