Synonyms|80Antonyms|0|Broader|5Narrower|0Related|5
1
senselessness
1
shattered mind
1
sick mind
1
sickness
1
simple-wittedness
1
simplemindedness
1
simpleness
1
simplicity
1
strangeness
1
unbalance
1
unbalanced mind
1
unsaneness
1
unsound mind
1
unsoundness
1
unsoundness of mind(expression, idiom)
1
witlessness
0
imbecilities
0
mental defect(noun, expression, dementia, subnormality)
0
oligophrenia
0
underdevelopment
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>