Impassive is a synonym of dour.
As adjectives the difference between impassive and dour
is that impassive is having, or revealing, no emotion while dour is stern, harsh and forbidding.
impassive
English
Adjective
(
en adjective)
Having, or revealing, no emotion.
Still or motionless.
Synonyms
* apathetic, phlegmatic
dour
English
Adjective
(en-adj)
Stern, harsh and forbidding.
Unyielding and obstinate.
Expressing gloom or melancholy; sullenly unhappy.
Synonyms
* forbidding, harsh, severe, stern
* (unyielding) obstinate, stubborn, unyielding
* (expressing gloom) dejected, gloomy, melancholic, sullen
Derived terms
* dourly
* dourness