SENESCENT Synonyms: 59 Similar and Opposite Words

senescent

adjective

Definition of senescent

as in older

being of advanced years and especially past middle age symptoms most often seen in senescent people

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of senescent Some cells even grow senescent, forgetting how to replicate at all. — T.m. Brown, CNN Money, 26 June 2026 In Coconut Grove, Martin and Terra built or co-developed three big high-rise luxury condo projects — seven towers in all — that, while controversial among many residents, helped resuscitate what had been a senescent village center. — Andres Viglucci, Miami Herald, 18 May 2026 Zombie cells are senescent cells, which are cells that are technically alive but in growth arrest due to a variety of stressors, including oxidative stress and DNA damage. — Celia Shatzman, Forbes.com, 18 Sep. 2025 But having too few senescent cells is dangerous, because senescence helps block tumors. — Tad Friend, New Yorker, 4 Aug. 2025 See All Example Sentences for senescent

Recent Examples of Synonyms for senescent

Adjective

But in recent weeks, hundreds, if not thousands, of immigrants — babies, children and elderly adults included — have waited for hours outside its doors to attend routine hearings.

— Syra Ortiz Blanes, Miami Herald, 17 Sep. 2026
Among those killed were 12 children, five women, two men and two elderly people, the ministry said.

— Morgan Winsor, ABC News, 17 Sep. 2026

Definition of elderly

Adjective

Luckily, my job involves investigating which anti-aging products are worth buying, and right now, my focus is on Eight Saints Up the Anti Night Cream.

— Melony Forcier, InStyle, 10 Sep. 2026
Someone researching the best anti-aging cream for their needs can identify the active associated with firmness, look at the available evidence, and see how Okoaskin describes the finished formula.

— Matthew Kayser, USA Today, 10 Sep. 2026

Definition of aging

Adjective

The sheriff's office's drone was used to assist in checking the approximately 28-acre property and helped identify old kennel and animal-confinement areas.

— River Valley Democrat-Gazette, Arkansas Online, 9 Sep. 2026
The 27-year-old pre-training researcher’s dramatic resignation has fired off a provocative warning on X that instantly sent ripples across the tech sector.

— Mrigakshi Dixit, Interesting Engineering, 9 Sep. 2026

Definition of old

Adjective

Stephanie Cole, the popular British actress who was one of the stars of Open All Hours, has died aged 84.

— Max Goldbart, Deadline, 18 Sep. 2026
The museum tends to attract a broad swath of ages, from middle school on up to senior citizens—though school vacation periods do bring in a younger, elementary school–aged crowd, too.

— Condé Nast, Condé Nast Traveler, 17 Sep. 2026

Definition of aged

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senescence

senescent

senhorita

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“Senescent.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/senescent. Accessed 21 Sep. 2026.

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Synonyms of senescent

adjective

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