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 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 QAnon was for senescent boomers; fashwave and Embrace Masculinity clips are millennial-coded. — Kieran Press-Reynolds, Pitchfork, 30 Apr. 2025 If the cells were truly senescent, then the medications should both reduce the number of senescent cells and reverse many of the structural DNA changes and gene expression disruptions. — Megan Molteni, STAT, 9 Jan. 2022 See All Example Sentences for senescent

Recent Examples of Synonyms for senescent

Adjective

So, for example, 4 NAZA would mean four other people killed — women, children, elderly, the term doesn’t differentiate.

— Bilge Ebiri, Vulture, 10 Sep. 2026
In the film, Efira plays Marie-Lou, who runs a care facility outside Paris and pushes for gentler treatment of its elderly residents.

— Naman Ramachandran, Variety, 10 Sep. 2026

Definition of elderly

Adjective

Importantly, Chien says the survey does not advocate an anti-aging narrative.

— Vince Basada, Sacbee.com, 4 Sep. 2026
Also formulated with hyaluronic acid, shea butter, collagen, peptides, and niacinamide, this anti-aging powerhouse remains true to its name thanks to a seemingly endless list of hydrating ingredients.

— Jenny Berg, Vogue, 31 Aug. 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

Lewis Miley, the 20-year-old academy graduate, agreed a contract extension in May and Newcastle signed eight players all aged 24 or under over the summer.

— Chris Waugh, New York Times, 11 Sep. 2026
The strike killed a husband and wife, alongside their two daughters, aged 8 and 12.

— Arkansas Online, Arkansas Online, 11 Sep. 2026

Definition of aged

Browse Nearby Words

senescence

senescent

senhorita

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“Senescent.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/senescent. Accessed 14 Sep. 2026.

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Synonyms of senescent

adjective

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