闭口无言 bìkǒuwúyán tongue-tied Origin Definitions Defs Strokes Stroke Words Sentences Sents 闭口 閉口 bìkǒu to shut up to keep one's mouth shut; to stop talking or refrain from expressing an opinion无言 無言 wúyán adjective speechless; silent to remain silent; to have nothing to say; speechlessness