Meaning : Having or revealing little emotion or sensibility. Not easily aroused or excited.
Example :
Her impassive remoteness.
He remained impassive, showing neither interest in nor concern for our plight.
A silent stolid creature who took it all as a matter of course.
Her face showed nothing but stolid indifference.
Synonyms : stolid
Meaning : Deliberately impassive in manner.
Example :
Deadpan humor.
His face remained expressionless as the verdict was read.
Synonyms : deadpan, expressionless, poker-faced, unexpressive