157 entries under casual topic. ×

51
heedless(noun, adjective, feature, state, easy)
45
thoughtless(adjective, feature, state, easy, sharp)
40
reckless(adjective, feature, state, weak, easy)
36
negligent(noun, adjective, feature, state, calm)
34
unmindful(noun, adjective, soft, easy, neglect)
32
incautious(adjective, weak, wild, foolish, anxious)
31
neglectful(noun, adjective, calm, dull, cool)
29
imprudent(adjective, easy, sharp, rough, wild)
26
unthinking(adjective, sharp, rough, indifferent, silly)
25
irresponsible(adjective, feature, state, weak, wild)
25
remiss(noun, adjective, dull, soft, neglect)
23
inconsiderate(adjective, sharp, rough, cold, indifferent)
23
sloppy(adjective, soft, dirty, careful)
23
unconcerned(noun, adjective, feature, state, calm)
22
indifferent(noun, adjective, feature, state, calm)
22
regardless(adjective, adverb, soft, cold, indifferent)
21
inadvertent(adjective, cold, foolish, stupid)
20
forgetful(adjective, soft, cold, indifferent, silly)
19
indiscreet(adjective, sharp, rough, wild, foolish)
19
lax(adjective, feature, state, soft, indifferent)
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APASmart Define. (2016). careless thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/careless/thesaurus/synonyms
ChicagoSmart Define. 2016. "careless thesaurus" https://smartdefine.org/careless/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, careless thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/careless/thesaurus/synonyms>.
MLASmart Define. "careless thesaurus" 3 March 2016. Web. 28 September 2026. <https://smartdefine.org/careless/thesaurus/synonyms>