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

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

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

Tamang said her family was able to rush to higher ground, carrying her elderly grandmother with them, but their home was washed away.

— Diaa Hadid, NPR, 27 Aug. 2026
The second half of the novel focuses on Alice, an elderly woman who suffers from dementia.

— Literary Hub, Literary Hub, 26 Aug. 2026

Definition of elderly

Adjective

Both types of MDs have recommended a slew of SkinBetter Science’s anti-aging products to me, including this eye cream.

— Tamim Alnuweiri, InStyle, 19 Aug. 2026
What the Study Found A team of researchers at Texas A&M University set out to determine whether the NR4A1 receptor plays a role in the anti-aging benefits of coffee.

— Lauren Panoff, Verywell Health, 11 Aug. 2026

Definition of aging

Adjective

Nuclear Children follows 18-year-old Isla Sparrow who, after the death of her father in a submarine accident, hopes to escape her grieving family and flee to university.

— Jesse Whittock, Deadline, 26 Aug. 2026
But in older adults, the relationship between body weight and health may be more complicated than a number on the scale.

— Faye Chiu, CNN Money, 26 Aug. 2026

Definition of old

Adjective

On June 7, 1945, following Germany’s surrender to the allies in World War Two, Harald, aged 8, returned to Norway with the rest of the royal family and was welcomed by thousands of people on the streets of the capital, Oslo.

— James Frater, CNN Money, 28 Aug. 2026
Children aged 4 and below have the highest case-fatality rate of any age group in the outbreak, at 60%, according to available health data.

— ABC News, ABC News, 27 Aug. 2026

Definition of aged

Browse Nearby Words

senescence

senescent

senhorita

See all Nearby Words

Cite this Entry

Style

“Senescent.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/senescent. Accessed 31 Aug. 2026.

Copy Citation

Synonyms of senescent

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

gumption

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words

Popular in Wordplay

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Games & Quizzes