50 entries under cool topic. ×

11
unemotional(adjective, calm, tough, rational)
7
dispassionate(adjective, calm, reasonable, moderate)
6
passionless(adjective, unfriendly, aloof, distant)
6
reserved(adjective, calm, reasonable, moderate)
6
sober(adjective, calm, dull, tough)
5
cold(adjective, calm, tough, dark)
5
emotionless(adjective, tough, rational, straightforward)
4
frigid(adjective, detached, blank, sober)
4
impassive(adjective, calm, tough, restrained)
4
matter-of-fact(adjective, rational, straightforward, detached)
3
calm(adjective, tough, reasonable, moderate)
3
chill(adjective, detached, blank, sober)
3
cold-blooded(adjective, tough, rational, straightforward)
3
heartless(adjective, detached, blank, sober)
3
icy(adjective, detached, blank, aloof)
3
unfeeling(adjective, tough, detached, unfriendly)
2
detached(adjective, unfriendly, blank, sober)
2
flat(adjective, tough, rational, straightforward)
2
frosty(adjective, aloof, distant, lukewarm)
2
immovable(adjective, detached, blank, sober)
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APASmart Define. (2015). unimpassioned thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unimpassioned/thesaurus/synonyms
ChicagoSmart Define. 2015. "unimpassioned thesaurus" https://smartdefine.org/unimpassioned/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unimpassioned thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unimpassioned/thesaurus/synonyms>.
MLASmart Define. "unimpassioned thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/unimpassioned/thesaurus/synonyms>