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Definition of senility

senility

/səˈnɪl.ə.ti/
se · nil · i · ty

Plural:senilities
•
Adjective:senile
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senility Lexical Profile

senility Game Scores & Validity

• noun

1

The state or condition of experiencing physical and especially mental decline associated with advanced old age, characterized by memory loss, confusion, and impaired judgment.

Example

"Before modern neurology distinguished specific forms of dementia, severe memory loss in the elderly was often broadly attributed to senility."

Synonyms
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Antonyms
View all antonyms for senility

Word Nuance & Usage

In modern clinical contexts, 'senility' is considered outdated and imprecise because severe cognitive decline is no longer viewed as a normal consequence of aging; medical professionals prefer specific diagnoses such as 'dementia' or 'Alzheimer's disease'.

• Rhymes for senility

Word Origin & Etymology

Borrowed in the late 18th century from French 'sénilité' or directly from Latin 'senilitas', from 'senilis' ('of old age'), which derives from 'senex' ('old, old man'), sharing an Indo-European root with words like 'senate' and 'senior'.

Cite this Entry


Wordmom. (2026). Definition of Senility. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/senility
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