FIRMNESS Synonyms: 72 Similar and Opposite Words

firmness

noun

Definition of firmness

as in decisiveness

firm or unwavering adherence to one's purpose a woman of remarkable firmness in the achievement of the goals she has set for herself

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in reliability

the ability to withstand force or stress without being distorted, dislodged, or damaged test the firmness of the concrete before parking the car on it

Synonyms & Similar Words

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 firmness In a study of 31 people, the brand found that the finished Rejuvenating Night Cream improved eight signs of aging, including fine lines, plumpness, firmness, smoothness, texture, and wrinkles. — Christa Joanna Lee, Allure, 9 Oct. 2026 Options on the menu can vary by firmness, fill, or level of support. — Nashia Baker, Architectural Digest, 2 Oct. 2026 In a 12-week clinical study, improvements in firmness and elasticity began as early as two weeks. — Leslie Baumann, Miami Herald, 1 Oct. 2026 And beneath the skin’s surface, the cream’s mixture of hydrolyzed collagen, niacinamide, squalane, and elastin comes together to strengthen the skin barrier, improve firmness, and deliver long-lasting hydration. — Kiana Murden, Vogue, 25 Sep. 2026 That makes sense, since the formula is packed with hydrating ingredients, like cocoa butter, squalane, olive oil, and grapeseed oil, to deeply nourish dry, crepey-looking skin while improving firmness. — Mariana Best, PEOPLE, 24 Sep. 2026 Reasons range from snoring to mismatched preferences around temperature, bedding, mattress firmness or noise and light levels. — Lauren Schuster, Charlotte Observer, 18 Sep. 2026

Recent Examples of Synonyms for firmness

Noun

While Whitman has no grocery experience and little retail experience (from her time as CEO of eBay), she was brought in by Albertsons for her turnaround chops and decisiveness.

— Phil Wahba, Fortune, 13 Oct. 2026
The window to capitalize on these moves is narrow, demanding precision and decisiveness.

— David Capablanca, Forbes.com, 14 Sep. 2026

Definition of decisiveness

Noun

The results may offer useful clues about the reliability required before humanoids can take on longer shifts in industrial settings.

— Aamir Khollam, Interesting Engineering, 19 Oct. 2026
As implementation becomes less scarce, value moves toward judgment, integration, verification, security, reliability and operational ownership.

— Luis Aburto, Forbes.com, 16 Oct. 2026

Definition of reliability

Noun

The team is seeking further funding to evaluate the system’s durability and stability and advance it toward potential commercial use at nuclear storage facilities.

— Neetika Walter, Interesting Engineering, 16 Oct. 2026
Recent performance data is mixed but points to overall stability.

— Molly A. Wallace, Fortune, 16 Oct. 2026

Definition of stability

Noun

According to reporting by Semafor on Monday, the decision came after Wall Street executives privately raised safety concerns about attending the event with the event’s organizers, including Saudi sovereign fund PIF’s governor, Yasir Al-Rumayyan.

— Melissa Hancock, Fortune, 21 Oct. 2026
Prince Harry is opening up about his and wife Meghan Markle’s unexpected decision earlier this year to move back to the United Kingdom years after their dramatic fallout with the British royal family.

— Alexandra Del Rosario, Los Angeles Times, 21 Oct. 2026

Definition of decision

Noun

The event’s jaw-dropping radiance stunned astronomers, who think that a GRB of this strength strikes Earth only once every 10,000 years.

— Robin George Andrews, Scientific American, 20 Oct. 2026
Most leadership culture pushes people to catalog strengths, build on advantages, project confidence.

— Flavio Maluf, Forbes.com, 20 Oct. 2026

Definition of strength

Noun

But Carney’s resolve is being tested on more than one front, after the separatist Parti Québécois won Quebec's provincial election earlier this month.

— Callum Sutherland, Time, 16 Oct. 2026
Ukraine is warning that Russia is escalating that strategy this winter to break Ukraine’s resolve in its defense.

— Laura Kelly, The Hill, 12 Oct. 2026

Definition of resolve

Browse Nearby Words

firmly

firmness

firms

See all Nearby Words

Cite this Entry

Style

“Firmness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firmness. Accessed 22 Oct. 2026.

Copy Citation

Synonyms of firmness

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

vocation

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

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

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Did 'orange' the fruit or the color come first?

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

12 Lovely and Unusual Words for the Natural World

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes