Synonyms of impassive in English:

impassive


See US English definition of impassive

See UK English definition of impassive

See Spanish definition of impasible

adjective

1‘she smiled at him, but his features remained impassive’

SYNONYMS
expressionless, unexpressive, inexpressive, inscrutable, blank, deadpan, poker-faced, straight-faced, dispassionate
stony, wooden, unresponsive
empty, vacant, glazed, fixed, lifeless
ANTONYMS

expressive