形于色 Words — Dong Chinese Dictionary

xíngyúsè

to show one's feelings

喜形于色 xǐxíngyúsè to beam with joy

to light up with delight; to have one's joy clearly visible on one's face
喜怒不形于色 xǐnùbùxíngyúsè expressionless

To keep a poker face; to not show emotion on one's face.
怒形于色 nùxíngyúsè to look angry

to betray anger; fury written across one's face. Describes someone whose anger is obvious or difficult to hide.
忧形于色 yōuxíngyúsè to wear a worried expression

to show worry or distress on one's face; to look dismal and unhappy
义形于色 yìxíngyúsè with indignation written on one's face

To have one's righteous anger or indignation show clearly in one's facial expression
不形于色 bùxíngyúsè to hide one's feelings

Describes a person whose inner emotions do not show on their face; to maintain a poker face.