Synonyms|1.4kAntonyms|464|Broader|16Narrower|51Related|1.9k
1
blithe
1
bold
1
crass(adjective, coarse, sensitive, insensitive)
1
daring
1
delinquent(adjective, early, irresponsible, defaulting)
1
disordered
1
disorderly
1
enterprising
1
headlong(adjective, slow, reckless, dangerous)
1
idiotic(adjective, reasonable, smart, false, loose)
1
impolitic(adjective, careless, wise, unwise)
1
inaccurate(adjective, false, loose, reckless)
1
inadvertent
1
indifferent
1
inexact(adjective, false, loose, reckless)
1
injudicious
1
insouciant
1
involuntary
1
lackadaisical(adjective, careless, indifferent)
1
lazy
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APASmart Define. (2016). careful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/careful/thesaurus/antonyms
ChicagoSmart Define. 2016. "careful thesaurus" https://smartdefine.org/careful/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, careful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/careful/thesaurus/antonyms>.
MLASmart Define. "careful thesaurus" 24 January 2016. Web. 28 September 2026. <https://smartdefine.org/careful/thesaurus/antonyms>