Synonyms|133Antonyms|49|Broader|0Narrower|0Related|915
2
faint
2
fickle(adjective, careless, foolish, unstable, faint)
2
zany
1
absurd
1
apish
1
asinine
1
besotted
1
birdwitted
1
bubbleheaded(adjective, careless, unstable, unreliable, changeable)
1
careless(adjective, wild, stupid, vague, unthinking)
1
changeable(adjective, careless, wild, foolish, stupid)
1
cockamamie
1
daft
1
ditzy(adjective, careless, inconstant, giddy)
1
dizzily
1
fair
1
fatuous
1
featherheaded
1
flippant
1
fluffy
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APASmart Define. (2015). featherbrained thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/featherbrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "featherbrained thesaurus" https://smartdefine.org/featherbrained/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, featherbrained thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/featherbrained/thesaurus/synonyms>.
MLASmart Define. "featherbrained thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/featherbrained/thesaurus/synonyms>