not showing feelings, thoughts, etc. 无表情的；呆板的 an expressionless face/tone/voice 呆板的面孔／声调／声音
Extra ExamplesHis expressionless gaze followed her every move. 他木呆呆的眼神追随着她的一举一动。 His face remained expressionless. 他的脸仍然毫无表情。 She noticed the boy watching her with grey, expressionless eyes. 她注意到男孩用灰色，无表情的眼睛看着她。
Oxford Collocations DictionaryExpressionless is used with these nouns:- eye
- face
- mask
- …