不入耳 bùrù'ěr unpleasant to the ear 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入耳 rù'ěr pleasant to hear agreeable to the ear; pleasant to listen to