157 entries under casual topic. ×

1
rapid(quick, speedy, hasty, superficial)
1
shallow(quick, hasty, superficial, unfussy)
1
short(quick, thoughtless, unkind, selfish)
1
spontaneous(thoughtless, impetuous, arbitrary, unwary)
1
sudden(passionate, violent, quick, thoughtless)
1
swift(passionate, violent, quick, thoughtless)
1
trifling(adjective, calm, dull, cool, relaxed)
1
uncircumspect(adjective, thoughtless, heedless, happy-go-lucky)
1
unexpected(passionate, violent, thoughtless, abrupt)
1
unfeeling(adjective, calm, hard, cool, sharp)
1
uninformed(adjective, unconcerned, ignorant, unconscious)
1
unperturbed(adjective, calm, cool, relaxed, indifferent)
1
unsystematic(adjective, sloppy, extensive, erratic)
0
all over the map(expression, idiom, arbitrary)
0
brusque(indifferent, nonchalant)
0
collected(adjective, calm, cool, relaxed)
0
composed(adjective, calm, cool, relaxed)
0
curt(adjective, indifferent, nonchalant, inconsiderate)
0
disimpassioned(adjective, calm, cool, relaxed, detached)
0
disorganised(adjective, random, arbitrary)
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APASmart Define. (2016). careless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/careless/thesaurus/synonyms
ChicagoSmart Define. 2016. "careless thesaurus" https://smartdefine.org/careless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, careless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/careless/thesaurus/synonyms>.
MLASmart Define. "careless thesaurus" 3 March 2016. Web. 29 September 2026. <https://smartdefine.org/careless/thesaurus/synonyms>