76 entries under cool topic. ×

31
apathetic(adjective, calm, dull, quiet)
30
indifferent(adjective, calm, dull, quiet)
25
stoic(adjective, calm, dull, tough)
18
impassive(adjective, calm, dull, quiet)
16
stolid(adjective, calm, dull, quiet)
15
nonchalant(adjective, calm, quiet, relaxed)
15
unconcerned(adjective, calm, dull, weak)
15
unemotional(adjective, calm, dull, quiet)
13
cold(adjective, calm, tough, indifferent)
12
uninterested(adjective, dull, weak, easy)
11
lukewarm(adjective, dull, indifferent, restrained)
10
calm(adjective, quiet, tough, relaxed)
9
composed(adjective, calm, quiet, still)
9
dispassionate(adjective, calm, quiet, relaxed)
9
imperturbable(adjective, calm, quiet, relaxed)
9
serene(adjective, calm, quiet, relaxed)
9
unmoved(adjective, calm, indifferent, detached)
9
unresponsive(adjective, calm, dull, slow)
8
unenthusiastic(adjective, dull, weak, easy)
7
detached(adjective, calm, quiet, relaxed)
11 years ago|17k views|share |citing 
APASmart Define. (2015). phlegmatic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/phlegmatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "phlegmatic thesaurus" https://smartdefine.org/phlegmatic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, phlegmatic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/phlegmatic/thesaurus/synonyms>.
MLASmart Define. "phlegmatic thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/phlegmatic/thesaurus/synonyms>