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

An elderly pedestrian was killed after he was struck by two vehicles on Interstate 80 early Thursday morning, authorities said.

— Tim Fang, CBS News, 22 Oct. 2026
Disney actor Erik von Detten is being sued for allegedly scamming an elderly couple in a bizarre precious-metals scheme.

— Emily St. Martin, Los Angeles Times, 21 Oct. 2026

Definition of elderly

Adjective

An album-length EP by the 20-year-old producer is a dizzying and boundless collage of collages, using free-jazz logic and digital overload to chart new emotional terrain.

— Kieran Press-Reynolds, Pitchfork, 26 Oct. 2026
Rodrigo Valentim, a 51-year-old businessman and supporter of Bolsonaro, said another Lula government would harm the economy.

— Arkansas Online, Arkansas Online, 26 Oct. 2026

Definition of old

Adjective

Autonomous attacks powered by AI agents are becoming more common, Jessica Ji, a senior research analyst at Georgetown’s Center for Security and Emerging Technology (CSET) told Fortune.

— Emily Forlini, Fortune, 21 Oct. 2026
The approach is starting to resonate across Hawai’i’s tourism industry, says Jhana Young, sustainable seafood senior manager with Conservation International Hawai’i.

— Victoria Malloy, Time, 21 Oct. 2026