喃喃自语 nánnánzìyǔ mumble Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 他低下头，嘴里喃喃自语。 tā dīxià tóu, zuǐ lǐ nánnán zìyǔ. He lowered his head and muttered to himself. Source: Dong Chinese Dictionary