10
expressionless(adjective, inexpressive)
9
deadpan(adjective, inexpressive)
9
vacant(adjective, dull, indifferent, dead, impassive)
8
impassive(adjective, inexpressive)
7
poker-faced(adjective, dull, dead, impassive, unresponsive)
5
apathetic(adjective, inexpressive)
5
blank(adjective, expressionless)
5
dead(adjective, dull, impassive, unresponsive, vacant)
5
indifferent
5
inexpressive(adjective, dull, indifferent, dead, blank)
4
empty(adjective, dull, dead, impassive, unresponsive)
4
flat
4
taciturn(noun, adjective, reserved, reticent, uncommunicative)
3
dull(adjective, dead, impassive, unresponsive, vacant)
3
incommunicative(adjective, taciturn)
3
lifeless
3
nothing
3
passionless
3
spiritless
2
insignificant
11 years ago|2.2k views|share |citing 
APASmart Define. (2015). unexpressive thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unexpressive/thesaurus/synonyms
ChicagoSmart Define. 2015. "unexpressive thesaurus" https://smartdefine.org/unexpressive/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unexpressive thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unexpressive/thesaurus/synonyms>.
MLASmart Define. "unexpressive thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/unexpressive/thesaurus/synonyms>