不讲理 bùjiǎnglǐ unreasonable Origin Definitions Defs Strokes Stroke Words Sentences Sents 不 bù adverb not Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings讲理 講理 jiǎnglǐ verb + noun to be reasonable To listen to reason; to be sensible or fair-minded.