57 entries under careless topic. ×

8
lifeless(adjective, dull, slow, indifferent)
8
passive(adjective, dull, quiet, easy)
7
remiss(adjective, dull, casual, thoughtless)
6
laggard(noun, adjective, dull, quiet, easy)
5
tardy(dull, slow, sluggish, lazy)
5
tired(adjective, dull, indifferent, idle)
4
drowsy(adjective, dull, quiet, easy)
4
inattentive(adjective, dull, indifferent, apathetic)
4
sleepy(adjective, dull, quiet, easy)
4
slow-moving(adjective, dull, quiet, easy, slow)
4
spiritless(adjective, dull, slow, relaxed)
3
neglectful(adjective, dull, idle, sluggish)
3
negligent(adjective, casual, sluggish, lazy)
3
somnolent(adjective, dull, relaxed, indifferent)
3
unconcerned(adjective, dull, indifferent, casual)
3
weary(adjective, dull, relaxed, indifferent)
2
comatose(adjective, dull, slow, relaxed)
2
dreamy(adjective, quiet, easy, relaxed)
2
forgetful(adjective, slow, indifferent, casual)
2
heedless(adjective, casual, lethargic, languid)
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APASmart Define. (2015). indolent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/indolent/thesaurus/synonyms
ChicagoSmart Define. 2015. "indolent thesaurus" https://smartdefine.org/indolent/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, indolent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/indolent/thesaurus/synonyms>.
MLASmart Define. "indolent thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/indolent/thesaurus/synonyms>