无理性 wúlǐxìng irrational; irrationality Definitions Defs Origin Strokes Stroke Words Sentences Sents 无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less理性 lǐxìng reason the power of the mind to think, understand, and form judgments by a process of logic