393 entries under adjective topic. ×

3
somnolent(dull, relaxed, stupid, weary)
3
stuporous(stupid, idle, unfeeling, numb)
3
unanimated
3
unexcitable(calm, dull, cool, detached)
3
unflappable(calm, quiet, cool, indifferent)
3
unhurried(dull, quiet, weak, easy)
2
Laodicean
2
chill(restrained, detached, impassive, unemotional)
2
collected(calm, quiet, cool, relaxed)
2
crawling
2
dawdling
2
dead(cool, still, unfriendly, aloof)
2
deadpan(calm, tough, rational, straightforward)
2
debilitated(dull, stupid, idle, weary)
2
dilatory(dull, quiet, easy, heavy)
2
dormant(dull, stupid, still, weary)
2
drooping(dull, relaxed, sluggish, lazy)
2
easy(calm, dull, quiet, weak)
2
heartless(cool, indifferent, detached, blank)
2
heedless(dull, indifferent, detached, distant)
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APASmart Define. (2015). phlegmatic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/phlegmatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "phlegmatic thesaurus" https://smartdefine.org/phlegmatic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, phlegmatic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/phlegmatic/thesaurus/synonyms>.
MLASmart Define. "phlegmatic thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/phlegmatic/thesaurus/synonyms>