120 entries under dull topic. ×

2
weak(adjective, easy, slow, relaxed)
2
wooden(adjective, cool, blank, aloof)
1
blahs(adjective, weak, easy, slow)
1
doltish(adjective, slow, stupid, impassive)
1
down(adjective, slow, heavy, still)
1
draggy(adjective, simple, slow, heavy)
1
drippy(adjective, slow, heavy, sluggish)
1
energyless(adjective, weak, easy, slow)
1
faint(adjective, weak, easy, slow)
1
feeble(adjective, weak, easy, slow)
1
having spring fever(expression, adjective, idiom, stupid)
1
inattentive(adjective, indifferent, detached, distant)
1
infirm(adjective, weak, easy, slow)
1
languishing(adjective, weak, easy, slow)
1
limp(adjective, weak, easy, slow)
1
mooney(adjective, slow, heavy, sluggish)
1
naked(adjective, simple, tough, rational)
1
nebbish(adjective, weak, easy, slow)
1
neutral(adjective, indifferent, detached, distant)
1
off(adjective, slow, heavy, sluggish)
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APASmart Define. (2015). phlegmatic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/phlegmatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "phlegmatic thesaurus" https://smartdefine.org/phlegmatic/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, phlegmatic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/phlegmatic/thesaurus/synonyms>.
MLASmart Define. "phlegmatic thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/phlegmatic/thesaurus/synonyms>