81 entries under lethargic topic. ×

1
lagging(languid, indolent)
1
languishing(adjective, dull, weak, easy, slow)
1
limp(adjective, dull, weak, easy, slow)
1
mooney(adjective, dull, slow, heavy, sluggish)
1
neutral(adjective, dull, indifferent, detached, distant)
1
off(adjective, dull, slow, heavy, sluggish)
1
out of it(expression, adjective, idiom, dull, weary)
1
pokey(adjective, dull, slow, heavy, sluggish)
1
sleepyheaded(adjective, dull, slow, heavy, sluggish)
1
slow-moving(adjective, dull, quiet, moderate, easy)
1
sluggard(adjective, dull, slow, heavy, still)
1
slumberous(adjective, dull, slow, heavy, stupid)
1
stiff(adjective, dull, slow, heavy, sluggish)
1
stupid(dull, slow, impassive, unresponsive)
1
sullen(adjective, dull, slow, heavy, sluggish)
0
absent(languid, indolent)
0
abstracted(languid, indolent)
0
mopish(languid, indolent)
0
thoughtless(languid, indolent)
0
vacant(languid, indolent)
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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>