poker-faced

Definitions of poker-faced
1

adj deliberately impassive in manner

Synonyms:
deadpan, expressionless, impassive, unexpressive
incommunicative, uncommunicative
not inclined to talk or give information or express opinions

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.