Synonyms|80Antonyms|0|Broader|5Narrower|0Related|5
3
mental retardation
2
backwardness
2
retardation
1
slowness
0
subnormality
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APASmart Define. (2015). mental deficiency thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mental_deficiency/thesaurus/broader
ChicagoSmart Define. 2015. "mental deficiency thesaurus" https://smartdefine.org/mental_deficiency/thesaurus/broader (accessed September 24, 2026).
HarvardSmart Define 2015, mental deficiency thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mental_deficiency/thesaurus/broader>.
MLASmart Define. "mental deficiency thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/mental_deficiency/thesaurus/broader>