Synonyms|80Antonyms|0|Broader|5Narrower|0Related|5
1
disorientation
1
distraction
1
feeblemindedness
1
folie
1
furor
1
half-wittedness
1
idiocy
1
idiotism
1
imbecility
1
infantilism
1
insaneness
1
insanity
1
irrationality
1
loss of mind(expression, idiom)
1
loss of reason(expression, idiom)
1
lunacy
1
madness
1
mania
1
mental defectiveness
1
mental derangement
For more, visit Mental_deficiency on Power Thesaurus
11 years ago|842 views|share |citing 
APASmart Define. (2015). mental deficiency thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mental_deficiency/thesaurus/synonyms
ChicagoSmart Define. 2015. "mental deficiency thesaurus" https://smartdefine.org/mental_deficiency/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, mental deficiency thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mental_deficiency/thesaurus/synonyms>.
MLASmart Define. "mental deficiency thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/mental_deficiency/thesaurus/synonyms>