163 entries under indifferent topic. ×

51
heedless(noun, adjective, feature, state, easy)
45
thoughtless(adjective, feature, state, easy, sharp)
36
negligent(noun, adjective, feature, state, calm)
34
unmindful(noun, adjective, soft, easy, neglect)
31
inattentive(noun, adjective, dull, cold)
31
neglectful(noun, adjective, calm, dull, cool)
26
unthinking(adjective, sharp, rough, silly)
25
remiss(noun, adjective, dull, soft, neglect)
23
inconsiderate(adjective, sharp, rough, cold)
23
unconcerned(noun, adjective, feature, state, calm)
22
casual(adjective, feature, state, calm, cool)
22
regardless(adjective, adverb, soft, cold)
20
forgetful(adjective, soft, cold, silly)
19
lax(adjective, feature, state, soft)
17
nonchalant(adjective, feature, state, calm, cool)
13
unobservant(noun, adjective, cold, foolish)
12
slack(noun, adjective, dull, soft)
12
injudicious(adjective, sharp, rough, foolish)
12
insouciant(adjective, feature, state, calm, dull)
12
mindless(adjective, wild, stupid, careful)
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APASmart Define. (2016). careless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/careless/thesaurus/synonyms
ChicagoSmart Define. 2016. "careless thesaurus" https://smartdefine.org/careless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, careless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/careless/thesaurus/synonyms>.
MLASmart Define. "careless thesaurus" 3 March 2016. Web. 24 September 2026. <https://smartdefine.org/careless/thesaurus/synonyms>