143 entries under adjective topic. ×

19
flighty(noun, ability, careless, silly)
16
frivolous(noun, ability, careless, silly)
14
giddy(noun, ability, careless, silly)
13
silly
11
foolish(careless, silly, stupid, trivial)
10
dizzy(noun, slang, ability, careless)
9
empty-headed
9
irresponsible(careless, excited, stupid, vague)
9
rattlebrained
8
goofy(frivolous, dizzy, frothy, flighty)
8
hare-brained(noun, ignore, forget, vague)
7
capricious(careless, excited, immoral, thoughtless)
7
erratic(ignore, forget, vague, absent)
7
harebrained(ability, careless, silly, foolish)
7
rattlepated
6
scatty(silly, vague, distracted, giddy)
5
fickle(careless, excited, immoral, thoughtless)
5
brainless(simple, slow, stupid, boring)
5
dull(silly, foolish, stupid, sluggish)
5
whimsical(excited, unreliable, changeable, fearful)
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APASmart Define. (2015). scatterbrained thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/scatterbrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "scatterbrained thesaurus" https://smartdefine.org/scatterbrained/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, scatterbrained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/scatterbrained/thesaurus/synonyms>.
MLASmart Define. "scatterbrained thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/scatterbrained/thesaurus/synonyms>