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

Their chaotic path eventually brings them to a wealthy elderly woman who is blind.

— Naman Ramachandran, Variety, 1 Oct. 2026
But on that Sunday in 2024, Wagner spoke to a nearly empty church — about 12 elderly members, sitting far apart from one another in a sanctuary built for a thousand people.

— John Blake, CNN Money, 1 Oct. 2026

Definition of elderly

Adjective

But many eye creams simply hydrate without any real anti-aging benefits, and searching for a star formula can get pricey fast.

— Olivia Cigliano, InStyle, 25 Sep. 2026
SwRI plans to expand the EII to other battery chemistries, cell formats and application areas, while also examining how aging, degradation and thermal management affect interchangeability.

— Rupendra Brahambhatt, Interesting Engineering, 20 Sep. 2026

Definition of aging

Adjective

The proximity to his father was what worried Lorena Zschaber, a 40-year-old photographer, who watched the results roll in at an LGBTQ+ friendly bar in downtown Rio de Janeiro.

— Arkansas Online, Arkansas Online, 5 Oct. 2026
The 168-year-old magazine’s breakout journalism, its digital success, and a bit of good timing have given both Goldberg and Thompson plenty to brag about on the media podcast circuit.

— Max Tani, semafor.com, 5 Oct. 2026

Definition of old

Adjective

Recently, a middle-aged woman came to see me in my ophthalmology clinic because her eyes felt gritty and uncomfortable.

— Joshua R. Ehrlich, The Conversation, 1 Oct. 2026
That kind of thing must happen all the time to Keanu Reeves, but few directors—especially middle-aged Polish directors—can be guaranteed the same treatment.

— Anthony Lane, New Yorker, 28 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 5 Oct. 2026.

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Synonyms of senescent

adjective

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