impassivity

Her impassivity during the heated argument surprised everyone.

用法提示：名词，表示无感情的状态。

The defendant's impassivity in court made the jury uncomfortable.

用法提示：名词，描述缺乏情绪反应。

His impassivity in the face of criticism was mistaken for arrogance.

用法提示：名词，体现平静和泰然自若。