46 entries under happy-go-lucky topic. ×

18
absent-minded(noun, adjective, ability, careless, casual)
13
oblivious(noun, adjective, ignore, careless, casual)
10
forgetful(adjective, ignore, careless, casual, forget)
10
unmindful(noun, adjective, careless, attention, casual)
9
heedless(noun, adjective, careless, casual, unconcerned)
5
careless(noun, adjective, indifferent, casual, apathetic)
5
negligent(noun, adjective, careless, casual, thoughtless)
4
inadvertent(adjective, careless, indifferent, casual, thoughtless)
4
napping(casual, inattention, slapdash)
4
unheeding(adjective, careless, casual, remote, vague)
3
indifferent(noun, adjective, dull, careless, relaxed)
2
lax(adjective, careless, indifferent, casual, sloppy)
2
remiss(noun, adjective, careless, casual, thoughtless)
2
thoughtless(adjective, dull, careless, indifferent, foolish)
2
unconcerned(noun, adjective, careless, indifferent, casual)
2
unobservant(noun, adjective, careless, casual, thoughtless)
1
disregardful(adjective, casual, unconcerned, unfamiliar, uninformed)
1
indolent(careless, indifferent, casual, apathetic, lethargic)
1
lackadaisical(adjective, careless, indifferent, casual, lethargic)
1
loose(adjective, free, individual, casual, sloppy)
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APASmart Define. (2016). abstracted thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/abstracted/thesaurus/synonyms
ChicagoSmart Define. 2016. "abstracted thesaurus" https://smartdefine.org/abstracted/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, abstracted thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/abstracted/thesaurus/synonyms>.
MLASmart Define. "abstracted thesaurus" 2 March 2016. Web. 1 October 2026. <https://smartdefine.org/abstracted/thesaurus/synonyms>