Synonyms|1.1kAntonyms|346|Broader|15Narrower|3Related|1.9k
2
unmindful(adjective, happy, careless, superficial, flippant)
2
unreflective
2
unwise(adjective, stupid, prudent, irresponsible)
2
violent
1
rash(adjective, reasonable, happy, sensible, careless)
1
abrupt
1
arbitrary
1
brainless
1
capricious(reasonable, predictable)
1
cheap
1
clairvoyant
1
coldblooded(good, mild)
1
crass
1
deaf
1
disrespectful
1
extemporaneous
1
foolhardy(adjective, rash, impetuous)
1
forgetful
1
half-baked(adjective, stupid)
1
half-cocked
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APASmart Define. (2016). thoughtful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/thoughtful/thesaurus/antonyms
ChicagoSmart Define. 2016. "thoughtful thesaurus" https://smartdefine.org/thoughtful/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, thoughtful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/thoughtful/thesaurus/antonyms>.
MLASmart Define. "thoughtful thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/thoughtful/thesaurus/antonyms>