50 entries under lackluster topic. ×

5
slumberous(adjective, dull, quiet, slow, heavy)
4
indifferent(adjective, dull, weak, easy, slow)
4
lifeless(adjective, dull, slow, careless, indifferent)
4
slow(adjective, dull, quiet, weak, easy)
4
supine(adjective, dull, weak, easy, slow)
3
blah(adjective, dull, quiet, weak, easy)
3
idle(adjective, dull, careless, indifferent, weary)
3
out of it(expression, adjective, idiom, dull, quiet)
3
snoozy(adjective, dull, quiet, weak, easy)
2
indolent(adjective, dull, slow, careless, relaxed)
2
lackadaisical(adjective, dull, weak, easy, slow)
2
laggard(adjective, dull, careless, indifferent, idle)
2
sleepyhead(adjective, dull, quiet, weak, easy)
2
slothful(adjective, dull, slow, careless, indifferent)
2
spiritless(adjective, dull, weak, easy, slow)
2
stretchy(adjective, dull, stupid, idle, weary)
1
debilitated(adjective, dull, heavy, stupid, idle)
1
dilatory(adjective, dull, careless, indifferent, idle)
1
draggy(adjective, dull, quiet, slow, heavy)
1
enervated(adjective, dull, weak, easy, slow)
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APASmart Define. (2015). comatose thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/comatose/thesaurus/synonyms
ChicagoSmart Define. 2015. "comatose thesaurus" https://smartdefine.org/comatose/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, comatose thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/comatose/thesaurus/synonyms>.
MLASmart Define. "comatose thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/comatose/thesaurus/synonyms>