あとさき 後先になる Show inflections LinksSentence search for 後先になるSentence search for あとさきになるKanji details for 後 and 先Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to be inverted (of the order of something); to be reversed; to get mixed up; to become back to front Discussions Log in to talk about this word.