喜怒不形于色 xǐnùbùxíngyúsè expressionless Origin Definitions Defs Strokes Stroke Words Sentences Sents 喜 xǐ verbnoun happy to feel happy; to be delighted; to feel pleased怒 nù nounadjective angry to become angry; to get furious; indignant不形于色 不形於色 bùxíngyúsè to hide one's feelings Describes a person whose inner emotions do not show on their face; to maintain a poker face.