76 entries under cool topic. ×

7
insensible(adjective, indifferent, feelings, blank)
7
stoical(adjective, calm, smooth, indifferent)
7
unfeeling(adjective, calm, tough, indifferent)
6
spiritless(adjective, dull, weak, easy)
6
unruffled(adjective, calm, quiet, smooth)
5
aloof(adjective, calm, indifferent, restrained)
5
emotionless(adjective, calm, dull, tough)
5
placid(adjective, calm, quiet, smooth)
5
self-controlled(adjective, calm, quiet, relaxed)
4
distant(adjective, indifferent, restrained, detached)
4
dry(adjective, calm, dull, tough)
4
resigned(adjective, calm, quiet, indifferent)
4
undemonstrative(adjective, calm, restrained, detached)
3
callous(adjective, indifferent, detached, unfriendly)
3
matter-of-fact(adjective, calm, dull, simple)
3
passionless(adjective, calm, indifferent, detached)
3
unexcitable(adjective, calm, dull, detached)
3
unflappable(adjective, calm, quiet, indifferent)
2
chilly(restrained, unemotional, unenthusiastic, half-hearted)
2
collected(adjective, calm, quiet, relaxed)
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APASmart Define. (2015). phlegmatic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/phlegmatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "phlegmatic thesaurus" https://smartdefine.org/phlegmatic/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, phlegmatic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/phlegmatic/thesaurus/synonyms>.
MLASmart Define. "phlegmatic thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/phlegmatic/thesaurus/synonyms>