40 entries under obtuse topic. ×

11
empty-headed(adjective, slight, ability, careless, silly)
6
foolish(adjective, simple, slight, careless, silly)
6
reckless(adjective, careless, wild, foolish, stupid)
4
careless(adjective, foolish, stupid, unstable, unreasonable)
4
irrational(adjective, simple, careless, foolish, stupid)
4
witless(careless, stupid, unthinking, unperceptive)
2
mindless(careless, stupid, unthinking, unperceptive)
1
absent-minded(careless, stupid, vague, unthinking)
1
confused(careless, stupid, unthinking, unperceptive)
1
heedless(adjective, careless, stupid, insensitive, erratic)
1
imprudent(adjective, simple, careless, wild, foolish)
1
inept(careless, stupid, unthinking, unperceptive)
1
loony(careless, stupid, unthinking, unperceptive)
1
rash(adjective, careless, wild, foolish, stupid)
1
regardless(careless, stupid, unthinking, unperceptive)
1
stupid(careless, vague, absurd, unthinking)
1
vacuous(careless, stupid, absurd, unthinking)
0
bovine(careless, stupid, unthinking, unperceptive)
0
doltish(careless, stupid, unthinking, unperceptive)
0
dull(careless, stupid, unthinking, unperceptive)
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APASmart Define. (2015). flighty thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/flighty/thesaurus/synonyms
ChicagoSmart Define. 2015. "flighty thesaurus" https://smartdefine.org/flighty/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flighty thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flighty/thesaurus/synonyms>.
MLASmart Define. "flighty thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/flighty/thesaurus/synonyms>