adj.无表情的，呆板的

His expressionless face gave no clue as to what he was thinking.
他那毫无表情的脸让人看不出他在想什么。
The statue stood tall, its expressionless eyes staring into the distance.
那座雕像高耸着，它无表情的眼睛凝视着远方。
She walked past him with an expressionless look, as if she hadn't recognized him.
她面无表情地从他身边走过，好像没有认出他一样。
Despite the chaos around him, his expressionless demeanor suggested that nothing could rattle him.
尽管周围一片混乱，但他那毫无表情的样子表明没有什么能让他感到不安。
The judge's expressionless face made it hard for anyone to guess how he would rule on the case.
法官那毫无表情的脸让人很难猜出他会如何裁决这个案件。
He tried to read her thoughts from her expressionless face but found it impossible.
他试图从她那毫无表情的脸上读懂她的想法，但发现这是不可能的。
The mask had an expressionless appearance, which added to the eerie atmosphere of the room.
那个面具看起来毫无表情，给房间增添了一种诡异的气氛。
After hearing the news, she remained expressionless, not showing any sign of emotion.
听到那个消息后，她依然面无表情，没有显示出任何情绪的迹象。
The man wore an expressionless mask during the entire interview, making it difficult to gauge his true feelings.
在整个采访过程中，那个男人戴着一张毫无表情的面具，让人难以判断他的真实感受。
With an expressionless voice, she read out the verdict, leaving the courtroom in stunned silence.
她用毫无表情的声音宣读了判决，让整个法庭陷入了震惊的沉默。