不難 bùnán HSK7 not difficult 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难 難 nán adjective difficult difficult; hard to do; troublesome; not easy; problematic; the opposite of 容易 róngyì