りふじん 理不尽 Common word Wanikani level 48 Play audio LinksSentence search for 理不尽Sentence search for りふじんKanji details for 理, 不 and 尽Edit in JMdict Na-adjective (keiyodoshi), Noun1. unreasonable; irrational; outrageous; absurd Discussions Log in to talk about this word.