1. 无表情的：expression of feeling 感情表达 | expressionless 无表情的 | expressive 表现的
2. 没有表情的：expressionist 表现主义作家或艺术家等 | expressionless 没有表情的 | expressionless 呆板的.
3. 呆板的：expressionless 没有表情的 | expressionless 呆板的. | expressionmanifestationshowdisplaymanifesttoshowofftodisplaycomportexpressivenessrendering 表现
4. (无表情)：puffy (浮肿) | expressionless (无表情) | ruddy (红润而健康的)
1. 毫无表情的;面无表情的
If you describe someone's face as expressionless, you mean that they are not showing their feelings.
adj
1. deliberately impassive in manner
e.g. deadpan humor
his face remained expressionless as the verdict was read