2
unsound(simple, silly, foolish, rash, risky)
2
unsuspecting(adjective, innocent, thick, unfamiliar, unconscious)
2
unthoughtful
2
vacant(adjective, careless, indifferent, blank, thoughtless)
2
vacuous(adjective, dull, simple, slow, careless)
1
abnormal
1
agonized(adjective, crazy, mad, odd, insane)
1
anserine
1
apish
1
apprenticed(adjective, innocent, thick, unfamiliar, unconscious)
1
asleep
1
attention grabbing
1
backward(adjective, simple, slow, silly, foolish)
1
backwards
1
barmy(adjective, crazy, mad, odd, insane)
1
bedlamite
1
befooled
1
beguiled
1
benighted(adjective, innocent, thick, unfamiliar, unconscious)
1
bereft of reason(expression, idiom)
11 years ago|20k views|share |citing 
APASmart Define. (2015). witless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/witless/thesaurus/synonyms
ChicagoSmart Define. 2015. "witless thesaurus" https://smartdefine.org/witless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, witless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/witless/thesaurus/synonyms>.
MLASmart Define. "witless thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/witless/thesaurus/synonyms>