1
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
2
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
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Recent Examples of firmness
Sleeping positions and firmness Beyond mattress type, your preferred sleep position and mattress firmness (how hard or soft a bed feels) are other important factors to consider when buying a mattress.
—
Sharon Brandwein, USA Today, 4 Apr. 2026
All mattress types are available in a range of firmness, so there isn’t a single firmest type of mattress.
—Bestreviews, Chicago Tribune, 3 Apr. 2026
Alcalde explains that red light at 650nm works closer to the surface, stimulating collagen production and supporting skin repair; over time, this translates to improvements in firmness, tone, and radiance.
—Jenny Berg, Vogue, 31 Mar. 2026
This 3-in-1 prograde red light therapy mask can help improve your skin’s firmness, tone and radiance.
—Bestreviews, Mercury News, 27 Mar. 2026
Along with this wizardry, the serum mimics the effects of injectables like Botox to improve overall firmness and elasticity, as well as to tighten and lift skin in the short and long term.
—Jessie Quinn, StyleCaster, 26 Mar. 2026
And having principles, showing firmness, means staying true to the festival’s tradition.
—Elsa Keslassy, Variety, 24 Mar. 2026
Medium firmness, medium strength of acceleration.
—Andrew P. Collins, The Drive, 19 Mar. 2026
The answer can help determine the best support level for hip, shoulder, and spinal alignment—firm for stomach sleepers, soft for side sleepers, and medium firmness for back sleepers.
—Nashia Baker, Architectural Digest, 19 Mar. 2026
Sharon Brandwein, USA Today, 4 Apr. 2026
All mattress types are available in a range of firmness, so there isn’t a single firmest type of mattress.
—Bestreviews, Chicago Tribune, 3 Apr. 2026
Alcalde explains that red light at 650nm works closer to the surface, stimulating collagen production and supporting skin repair; over time, this translates to improvements in firmness, tone, and radiance.
—Jenny Berg, Vogue, 31 Mar. 2026
This 3-in-1 prograde red light therapy mask can help improve your skin’s firmness, tone and radiance.
—Bestreviews, Mercury News, 27 Mar. 2026
Along with this wizardry, the serum mimics the effects of injectables like Botox to improve overall firmness and elasticity, as well as to tighten and lift skin in the short and long term.
—Jessie Quinn, StyleCaster, 26 Mar. 2026
And having principles, showing firmness, means staying true to the festival’s tradition.
—Elsa Keslassy, Variety, 24 Mar. 2026
Medium firmness, medium strength of acceleration.
—Andrew P. Collins, The Drive, 19 Mar. 2026
The answer can help determine the best support level for hip, shoulder, and spinal alignment—firm for stomach sleepers, soft for side sleepers, and medium firmness for back sleepers.
—Nashia Baker, Architectural Digest, 19 Mar. 2026
Recent Examples of Synonyms for firmness
Noun
-
After all, confidence and decisiveness are hallmark traits of executive presence, a quality long sought by boards, taught at top business schools, and used at performance review time as a catch-all descriptor to either promote or shelve C-suite hopefuls.—
Harvard Business Review,
Harvard Business Review,
1 Apr. 2026
-
The chairman of the Joint Chiefs of Staff, General Dan Caine, and the head of Central Command, Admiral Brad Cooper, have been models of clarity, calm, and decisiveness.—
Eliot A. Cohen,
The Atlantic,
25 Mar. 2026
Noun
-
The City of Fort Worth says the work is focused on repairing deteriorating concrete along a high-traffic corridor to improve safety and reliability.—
Tiffani Jackson,
Fort Worth Star-Telegram,
29 Mar. 2026
-
The construction is part of a $93 million rehabilitation project that aims to improve safety, traffic flow and reliability for the more than 167,000 vehicles that use the expressway each day.—
Addison Wright,
Chicago Tribune,
29 Mar. 2026
Noun
-
That work was on display this week as Thomas Jefferson High School junior Bella Smith helped younger students hunt for Easter eggs – a simple moment that mirrors her own determination.—
Robbie Owens,
CBS News,
2 Apr. 2026
-
Those determinations complete the World Cup’s 48-team draw, as well as the full schedule, as North America for the first time serves as host.—
Michael McGough,
Sacbee.com,
1 Apr. 2026
Noun
-
Members of the ruling Cameroon People’s Democratic Movement (CPDM) hailed the legislation as a measure to ensure institutional stability.—
ABC News,
ABC News,
5 Apr. 2026
-
Their work focuses on enabling bamboo-frame drones to operate reliably without sacrificing stability or precision.—
Bojan Stojkovski,
Interesting Engineering,
4 Apr. 2026
Noun
-
All decisions of the judges regarding this Promotion are final and binding in all respects.—
Condé Nast,
Condé Nast Traveler,
1 Apr. 2026
-
Olsson and Garden set a deadline in the summer for a point at which Olsson wouldn’t take any more calls, providing the time and space to make her decision without noise.—
Megan Feringa,
New York Times,
1 Apr. 2026
Noun
-
But Food Lion is winning budget-conscious shoppers with its value and private label strength, Lempert said.—
Charlotte Observer,
Charlotte Observer,
2 Apr. 2026
-
This era of college basketball — the NIL and portal combination — has either robbed Self of his greatest strength or at least sneaked a few pennies from the community tray.—
Sam McDowell,
Kansas City Star,
2 Apr. 2026
Noun
-
For example, postpartum hair shedding often starts around three to five months post-childbirth, and resolves on its own within three to six months.—
Rebecca Strong,
USA Today,
3 Apr. 2026
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The war is also likely to harden the regime’s resolve to obtain a nuclear weapon, experts say.—
Lauren Kent,
CNN Money,
3 Apr. 2026
Cite this Entry
“Firmness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firmness. Accessed 5 Apr. 2026.
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