78 entries under cool topic. ×

6
uncommunicative(adjective, close, quiet, gentle)
5
emotionless(adjective, calm, dull, flat)
5
impassive(adjective, calm, restrained, detached)
5
inhibited(adjective, close, quiet, gentle)
5
unfriendly(adjective, indifferent, restrained, aloof)
5
uninterested(adjective, quiet, indifferent, restrained)
4
calm(adjective, quiet, reasonable, mild)
4
passionless(adjective, calm, dull, flat)
4
phlegmatic(adjective, calm, restrained, detached)
4
unmoved(adjective, unfriendly, aloof, distant)
3
cold-blooded(adjective, detached, unfriendly, blank)
3
dispassionate(adjective, calm, dull, flat)
3
lukewarm(adjective, indifferent, restrained, unfriendly)
3
solitary(adjective, close, quiet, gentle)
3
spiritless(adjective, unfriendly, aloof, distant)
3
unfeeling(adjective, calm, dull, flat)
2
annoyed(adjective, indifferent, restrained, reserved)
2
blank(adjective, detached, sober, unfeeling)
2
frosty(adjective, aloof, distant)
2
glacial(adjective, detached, blank, aloof)
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APASmart Define. (2015). undemonstrative thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/undemonstrative/thesaurus/synonyms
ChicagoSmart Define. 2015. "undemonstrative thesaurus" https://smartdefine.org/undemonstrative/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, undemonstrative thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/undemonstrative/thesaurus/synonyms>.
MLASmart Define. "undemonstrative thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/undemonstrative/thesaurus/synonyms>