46 entries under casual topic. ×

4
inadvertent(careless, indifferent, stupid, unconcerned)
4
offhand(inattention, happy-go-lucky, slapdash)
4
unreflective(careless, stupid, unthinking, inattention)
3
improvident(adjective, happy-go-lucky, slapdash)
3
unguarded(adjective, happy-go-lucky, slapdash)
3
unobservant(adjective, careless, stupid, careful)
2
disregardful(happy-go-lucky, slapdash)
2
irresponsible(careless, wild, foolish, stupid)
2
lackadaisical(happy-go-lucky, slapdash)
2
napping(happy-go-lucky, slapdash)
2
nonchalant(happy-go-lucky, slapdash)
2
perfunctory(unconscious, happy-go-lucky, slapdash, involuntary)
2
pococurante(happy-go-lucky, slapdash)
1
absent-minded(careless, stupid, unthinking, obtuse)
1
lax(indifferent, unconcerned, happy-go-lucky, slapdash)
1
remiss(careless, indifferent, stupid, unconcerned)
0
abstracted(happy-go-lucky, slapdash)
0
happy-go-lucky
0
inaccurate(happy-go-lucky, slapdash)
0
indolent(happy-go-lucky, slapdash)
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APASmart Define. (2015). mindless thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mindless/thesaurus/synonyms
ChicagoSmart Define. 2015. "mindless thesaurus" https://smartdefine.org/mindless/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mindless thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mindless/thesaurus/synonyms>.
MLASmart Define. "mindless thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/mindless/thesaurus/synonyms>