毋乃 wúnǎi isn't it Origin Definitions Defs Strokes Stroke Words Sentences Sents 毋 wú adjective not (literary) used to express negation, meaning "no", "not", or "to not have"; often equivalent to 不 bù or 无 wú乃 nǎi to be (literary) to be; refers to something being truly or certainly the case