67 entries under careless topic. ×

5
empty-headed(silly, foolish, stupid, trivial)
5
imprudent(adjective, weak, simple, foolish)
5
indiscreet(adjective, dull, weak, simple)
5
oblivious(adjective, silly, foolish, thoughtless)
5
unreasoning(adjective, foolish, stupid, unreasonable)
4
heedless(adjective, silly, foolish, thoughtless)
4
inconsiderate
4
injudicious(adjective, weak, simple, silly)
4
obtuse(adjective, dull, simple, silly)
4
vacuous(adjective, simple, silly, foolish)
3
doltish(dull, weak, simple, silly)
3
unmindful(adjective, silly, foolish, thoughtless)
2
flighty(silly, foolish, stupid, trivial)
2
instinctive(adjective, physical, thoughtless, inconsiderate)
2
outrageous(adjective, wild, strange, silly)
2
unreflective(stupid, unthinking, obtuse, unperceptive)
1
brutish(adjective, silly, foolish, thoughtless)
1
confused(stupid, unthinking, obtuse, unperceptive)
1
feckless(adjective, value, insignificant, unimportant)
1
inadvertent(stupid, thoughtless, unthinking, unknowing)
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APASmart Define. (2016). senseless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/senseless/thesaurus/synonyms
ChicagoSmart Define. 2016. "senseless thesaurus" https://smartdefine.org/senseless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, senseless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/senseless/thesaurus/synonyms>.
MLASmart Define. "senseless thesaurus" 14 March 2016. Web. 24 September 2026. <https://smartdefine.org/senseless/thesaurus/synonyms>