69 entries under impassive topic. ×

6
inactive(adjective, dull, quiet, flat, slow)
6
unresponsive(adjective, calm, dull, quiet, flat)
5
cold(adjective, calm, cool, tough, indifferent)
5
deadpan(adjective, calm, dull, tough, rational)
5
dry(adjective, calm, dull, cool, tough)
5
expressionless(adjective, dull, dead, blank)
5
heavy(adjective, dull, quiet, flat, stupid)
5
prosaic(adjective, dull, quiet, tough, flat)
5
supine(adjective, dull, stupid, weary, apathetic)
5
wooden(adjective, dull, quiet, cool, flat)
4
emotionless(adjective, calm, dull, cool, tough)
4
flat(adjective, calm, dull, quiet, tough)
4
unaffected(adjective, tough, rational, straightforward, sober)
3
cold-blooded(adjective, cool, tough, rational, straightforward)
3
unexcitable(adjective, calm, dull, cool, stupid)
3
unimaginative(adjective, tough, rational, straightforward, sober)
3
unimpassioned(adjective, tough, rational, straightforward, sober)
2
empty(adjective, dull, quiet, flat, heavy)
2
hard-boiled(noun, adjective, tough, rational, straightforward)
2
inscrutable(adjective, dull, cool, dead, blank)
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APASmart Define. (2016). stolid thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stolid/thesaurus/synonyms
ChicagoSmart Define. 2016. "stolid thesaurus" https://smartdefine.org/stolid/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, stolid thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stolid/thesaurus/synonyms>.
MLASmart Define. "stolid thesaurus" 3 March 2016. Web. 28 September 2026. <https://smartdefine.org/stolid/thesaurus/synonyms>