75 entries under indifferent topic. ×

13
tired(adjective, dull, slow, careless)
12
weary(adjective, dull, weak, easy, slow)
11
comatose(adjective, dull, quiet, weak, easy)
11
enervated(adjective, dull, weak, easy, slow)
11
supine(adjective, dull, quiet, weak, easy)
10
dilatory(adjective, dull, quiet, easy, careless)
10
slack(adjective, dull, quiet, slow, careless)
9
unconcerned(adjective, calm, dull, weak, easy)
8
dreamy(adjective, dull, quiet, easy, slow)
8
impassive(adjective, calm, dull, weak, easy)
8
spiritless(adjective, dull, weak, easy, slow)
8
stolid(adjective, calm, dull, slow)
8
uninterested(adjective, dull, weak, easy, slow)
7
laggard(adjective, dull, quiet, easy, careless)
6
insensible(adjective, cold, feelings, dead)
5
blah(adjective, calm, dull, quiet, weak)
5
detached(adjective, feelings, unfeeling, unconcerned)
5
droopy(adjective, relaxed, unconcerned, lifeless)
4
laid-back(adjective, dull, weak, easy, slow)
4
out of it(expression, adjective, idiom, dull, quiet)
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APASmart Define. (2016). lethargic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/lethargic/thesaurus/synonyms
ChicagoSmart Define. 2016. "lethargic thesaurus" https://smartdefine.org/lethargic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, lethargic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lethargic/thesaurus/synonyms>.
MLASmart Define. "lethargic thesaurus" 4 January 2016. Web. 28 September 2026. <https://smartdefine.org/lethargic/thesaurus/synonyms>