expressionless

an expressionless face

Their faces remained expressionless as they listened to the bad news.

He stared at me expressionless.

She answered the question expressionless.

The actor delivered his lines expressionless.

Her face remained expressionless throughout the meeting.

He received the news expressionless.

The detective observed the suspect expressionless.

She walked down the runway expressionless.

The robot's face was designed to be expressionless.

He listened to the music expressionless.

The teacher looked at the students expressionless.