不了解 bùliǎojiě to not understand 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了解 瞭解 liǎojiě verb to understand to understand clearly; to be well-informed about; to realize