170 entries under adjective topic. ×

1
erratic(careless, silly, unsteady, inconstant)
1
feather-headed
1
flustered(careless, silly, unsteady, inconstant)
1
gullible(dull, simple, slow, silly)
1
hasty
1
heedless(careless, silly, unsteady, inconstant)
1
irresolute(careless, silly, unsteady, inconstant)
1
knuckle-headed
1
lame-brained
1
meat-headed
1
myopic
1
numskulled(simple, slow, stupid, boring)
1
sluggish(dull, simple, slow, stupid)
1
thimble-witted
1
unconsidered
1
undiscriminating
1
unlearned
1
unoccupied
1
unwitting
1
vacant
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APASmart Define. (2016). brainless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/brainless/thesaurus/synonyms
ChicagoSmart Define. 2016. "brainless thesaurus" https://smartdefine.org/brainless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, brainless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/brainless/thesaurus/synonyms>.
MLASmart Define. "brainless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/brainless/thesaurus/synonyms>