SENILE Synonyms: 57 Similar and Opposite Words

senile

adjective

Definition of senile

as in elderly

showing a loss of mental ability (such as memory) in old age a senile man in his eighties Her mother is becoming senile.

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Example Sentences

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Recent Examples of senile Billy Chapman is again introduced as a child (Logan Sawyer) visiting his senile grandpa in a rest home. — Dennis Harvey, Variety, 11 Dec. 2025 The kids can’t spell and the world leaders are senile. — Literary Hub, 21 Oct. 2025 Back on the domestic front, Jeanine has reason to believe that her husband, Paul (Mark O’Brien), is having an affair with her senile mother’s caregiver. — Michael Rechtshaffen, The Hollywood Reporter, 9 Sep. 2023 Don Quixote himself is too often a senile dodderer; Daniel Rubin was creaky in body but youthfully quixotic in spirit. — Jeffrey Gantz, BostonGlobe.com, 17 Mar. 2023 See All Example Sentences for senile

Recent Examples of Synonyms for senile

Adjective

Patterson invited the parents of her estranged husband and their two elderly friends to lunch in July 2024.

— Hilary Whiteman, CNN Money, 20 Aug. 2026
He was slated to start community college in the fall and had spent the last several months working as a caregiver in an elderly living center.

— Laurie Perez, CBS News, 20 Aug. 2026

Definition of elderly

Adjective

So when the 36-year-old was pronounced dead in a South Carolina apartment on Sunday, shock and grief stretched around the world.

— Holly Yan, CNN Money, 19 Aug. 2026
Chinese humanoid robot maker Unitree Robotics saw its shares jump as much as 629% during its Wednesday market debut in Shanghai—an eye-popping rally that pushed 36-year-old chairman and CEO Wang Xingxing’s net worth to $16 billion.

— Yue Wang, Forbes.com, 19 Aug. 2026

Definition of old

Adjective

Rezaei was named this month as part of senior appointments widely seen as hardening Tehran’s political and military stance.

— ABC News, ABC News, 23 Aug. 2026
Rezaei was a senior commander during the war with Iraq in the 1980s — a foundational moment in the creation of the Islamic Republic.

— Tim Lister, CNN Money, 23 Aug. 2026