Synonyms|10Antonyms|0|Broader|0Narrower|0Related|0
1
dementia(noun, madness, senility)
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derangement(madness, senility)
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insanity(madness, senility)
0
madness
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mental deterioration(expression, madness, senility)
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mental disorder(expression, madness, senility)
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personality change(expression, madness, senility)
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senility
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softening of the brain(expression, idiom, madness, senility)
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unbalance(madness, senility)
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APASmart Define. (2011). mental decay thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/mental_decay/thesaurus/synonyms
ChicagoSmart Define. 2011. "mental decay thesaurus" https://smartdefine.org/mental_decay/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2011, mental decay thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/mental_decay/thesaurus/synonyms>.
MLASmart Define. "mental decay thesaurus" 21 May 2011. Web. 21 September 2026. <https://smartdefine.org/mental_decay/thesaurus/synonyms>