Synonyms|73Antonyms|1|Broader|0Narrower|0Related|3
1
disoriented
1
distraught
1
flighty
1
half-baked
1
imbecile
1
insane
1
irrational
1
loco
1
lunatic
1
mad
1
manic
1
mental
1
mentally retarded
1
mongoloid
1
moonstruck
1
non compos mentis(expression, idiom)
1
not right
1
off
1
queer
1
reasonless
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APASmart Define. (2015). mentally deficient thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mentally_deficient/thesaurus/synonyms
ChicagoSmart Define. 2015. "mentally deficient thesaurus" https://smartdefine.org/mentally_deficient/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mentally deficient thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mentally_deficient/thesaurus/synonyms>.
MLASmart Define. "mentally deficient thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/mentally_deficient/thesaurus/synonyms>