りゆうづ 理由付け LinksSentence search for 理由付けSentence search for りゆうづけSentence search for 理由づけKanji details for 理, 由 and 付Edit in JMdict Noun1. rationalization; justificationOther forms理由づけ 【りゆうづけ】 Discussions Log in to talk about this word.