stolid vs impassive

stolid and impassive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stolid	No	Yes	No	No
impassive	No	Yes	No	No

As adjectives, stolid and impassive are synonyms defined as:

stolid and impassive: having or revealing little emotion or sensibility; not easily aroused or excited

stolid (adjective)	impassive (adjective)
having or revealing little emotion or sensibility; not easily aroused or excited	deliberately impassive in manner
	having or revealing little emotion or sensibility; not easily aroused or excited