58 entries under careless topic. ×

3
irrational(stupid, vague, absurd, unthinking)
3
unreasonable(adjective, stupid, thoughtless, absurd)
2
bubbleheaded(adjective, silly, unstable, unreliable)
2
confused(stupid, unthinking, obtuse, unperceptive)
2
frothy(adjective, slight, ability, trivial)
2
loony(stupid, unthinking, obtuse, unperceptive)
2
unreasoning(stupid, unthinking, obtuse, unperceptive)
1
absent-minded(adjective, stupid, vague, unthinking)
1
bemused(adjective, silly, unsteady, inconstant)
1
bovine(adjective, stupid, unthinking, obtuse)
1
capricious(adjective, silly, unstable, unreliable)
1
changeable(adjective, wild, stupid, unstable)
1
changeful(adjective, silly, unsteady, inconstant)
1
ditzy(adjective, silly, stupid, unsteady)
1
erratic(adjective, silly, unreliable, changeable)
1
fickle(adjective, silly, unstable, faint)
1
flustered(adjective, silly, unsteady, inconstant)
1
heedless(adjective, wild, silly, stupid)
1
ill-considered(silly, foolish, stupid, trivial)
1
imprudent(stupid, absurd, unthinking, obtuse)
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APASmart Define. (2015). empty-headed thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/empty-headed/thesaurus/synonyms
ChicagoSmart Define. 2015. "empty-headed thesaurus" https://smartdefine.org/empty-headed/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, empty-headed thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/empty-headed/thesaurus/synonyms>.
MLASmart Define. "empty-headed thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/empty-headed/thesaurus/synonyms>