46
sluggish(adjective, action, calm, dull, quiet)
42
listless(adjective, calm, dull, quiet, weak)
30
lazy(adjective, dull, weak, easy, slow)
29
inactive(adjective, action, dull, quiet, weak)
28
torpid(adjective, action, dull, quiet, weak)
26
sleepy(adjective, dull, quiet, slow, careless)
25
slow(adjective, dull, quiet, weak, easy)
23
languid(adjective, dull, weak, easy, slow)
23
slothful(adjective, dull, quiet, slow, careless)
21
indolent(adjective, dull, quiet, easy, slow)
21
apathetic(adjective, calm, dull, weak, easy)
21
inert(adjective, dull, weak, easy, slow)
20
idle(adjective, dull, quiet, careless, heavy)
19
dull(adjective, calm, dull, flat, slow)
19
languorous(adjective, dull, weak, easy, slow)
17
phlegmatic(adjective, calm, dull, quiet, weak)
17
lackadaisical(adjective, dull, quiet, weak, easy)
16
indifferent(adjective, calm, dull, weak, easy)
16
drowsy(adjective, dull, quiet, slow, careless)
14
dormant(adjective, dull, idle, weary, apathetic)
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APASmart Define. (2016). lethargic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lethargic/thesaurus/synonyms
ChicagoSmart Define. 2016. "lethargic thesaurus" https://smartdefine.org/lethargic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, lethargic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lethargic/thesaurus/synonyms>.
MLASmart Define. "lethargic thesaurus" 4 January 2016. Web. 22 September 2026. <https://smartdefine.org/lethargic/thesaurus/synonyms>