Definition of impassive:
incurious, dry, phlegmatic, deadpan, unexpressive, uninterested, stolid, lethargic, feelings, unconcerned, matter-of-fact, insensible, impassible, excite, incommunicative, unresponsive, indifferent, attitude, expressionless, unimpressionable, insusceptible, affect, unsusceptible, listless, uncommunicative, poker-faced, unemotional, insensitive.
- indifferent (part of speech: adjective)
unexcitable (part of speech: adjective)
- "The Chestermarke Instinct", J. S. Fletcher.
But his face, which had been eloquent with one feeling or another during every minute of this long interview till the present instant, looked strangely impassive, and I did not know how to press the question hovering on my lips.- "The Millionaire Baby", Anna Katharine Green.
- "The Millionaire Baby", Anna Katharine Green.