514 entries under adjective topic. ×

3
flippant
3
haphazard
3
hard(mean, ill, hostile, unfriendly)
3
harsh(mean, severe, sharp, rough)
3
high-spirited(feature, state, condition, trait)
3
hot-headed(unkind, uncaring, inconsiderate, ill-advised)
3
imbecilic(silly, foolish, stupid, senseless)
3
indelicate(sharp, rough, careless, vulgar)
3
inexact(cold, forget, uncaring, inattentive)
3
inhuman(mean, ill, hostile, unfriendly)
3
insensate
3
joyous(feature, state, condition, trait)
3
jubilant(feature, state, condition, trait)
3
laid back(verb, expression, phrasal verb, feature)
3
lax(feature, state, slow, careless)
3
light(feature, state, trait)
3
lightsome(feature, state, condition, trait)
3
lively(feature, state, trait, silly)
3
lumpish
3
nonsensical(silly, foolish, stupid, senseless)
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APASmart Define. (2016). thoughtless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thoughtless/thesaurus/synonyms
ChicagoSmart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, thoughtless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/synonyms>.
MLASmart Define. "thoughtless thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/thoughtless/thesaurus/synonyms>