poker-faced vs expressionless

poker-faced and expressionless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
poker-faced	No	Yes	No	No
expressionless	No	Yes	No	No

As adjectives, poker-faced and expressionless are synonyms defined as:

Other synonyms of poker-faced include deadpan, impassive, unexpressive.

poker-faced (adjective)	expressionless (adjective)
deliberately impassive in manner	deliberately impassive in manner