112 entries under thoughtless topic. ×

10
unwatchful(adjective, adverb, careless, cold, forget)
8
oblivious(noun, adjective, soft, careless, indifferent)
7
apathetic(noun, adjective, calm, cool, sharp)
7
devil-may-care(adjective, feature, state, soft, careless)
7
listless(adjective, calm, cool, sharp, rude)
5
abstracted(noun, adjective, careless, casual)
5
brash(adjective, sharp, rude, careless, indifferent)
5
foolhardy(adjective, careless, wild, easygoing)
5
improvident(adjective, careless, casual, bold)
5
incautious(adjective, sharp, rude, careless, indifferent)
5
unconscious(adjective, careless, indifferent, apathetic)
5
unthoughtful(adjective, sharp, rude, cold, indifferent)
5
wild(adjective, careless, reckless, irresponsible)
4
daring(adjective, wild, reckless, deed)
4
feckless(adjective, feature, state, careless, indifferent)
4
napping(adjective, careless, casual, inattentive)
4
unguarded(careless, casual, bold, wary)
3
carefree(adjective, feature, state, careless, indifferent)
3
deaf(adjective, sharp, rude, indifferent, short)
3
foolish(adjective, careless, silly, senseless)
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APASmart Define. (2015). negligent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/negligent/thesaurus/synonyms
ChicagoSmart Define. 2015. "negligent thesaurus" https://smartdefine.org/negligent/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, negligent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/negligent/thesaurus/synonyms>.
MLASmart Define. "negligent thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/negligent/thesaurus/synonyms>