1
as in certain
having been established and usually not subject to change
hard-and-fast rules that governed the corporate environment in those days included strictures regarding office dress that were rigidly enforced
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in unchangeable
not capable of changing or being changed
hard-and-fast beliefs that are the rock-solid foundation of their religion
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
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Recent Examples of hard-and-fast
But even in the absence of hard-and-fast rules and guardrails on how AI can be used in schools, education policymakers identified a number of ethical concerns raised by the technology’s spread, including student safety, data privacy and negative impacts on student learning.
—
Janice Mak, The Conversation, 22 Jan. 2026
Don’t miss Mardi Gras King Cake There’s a hard-and-fast rule in New Orleans.
—Jenny Adams, AFAR Media, 30 Dec. 2025
This was my hard-and-fast belief — up until the trailer for The Sheep Detectives was released on December 18.
—Fran Hoepfner, Vulture, 18 Dec. 2025
There’s no hard-and-fast rule, and if someone tells you there is?
—Natalie Krebs, Outdoor Life, 28 Aug. 2025
See All Example Sentences for hard-and-fast
Janice Mak, The Conversation, 22 Jan. 2026
Don’t miss Mardi Gras King Cake There’s a hard-and-fast rule in New Orleans.
—Jenny Adams, AFAR Media, 30 Dec. 2025
This was my hard-and-fast belief — up until the trailer for The Sheep Detectives was released on December 18.
—Fran Hoepfner, Vulture, 18 Dec. 2025
There’s no hard-and-fast rule, and if someone tells you there is?
—Natalie Krebs, Outdoor Life, 28 Aug. 2025
See All Example Sentences for hard-and-fast
Recent Examples of Synonyms for hard-and-fast
Adjective
-
The condition is not uncommon and somewhat prevalent in certain breeds like various Spaniels, certain Hounds, some Retrievers, and some giant dog breeds.—
Dr. John De Jong,
Boston Herald,
10 May 2026
-
Martin said the Vatican had been clear that the Vatican's 2023 declaration limited blessing of same-sex couples only under certain circumstances.—
ABC News,
ABC News,
9 May 2026
Adjective
-
Policies Vary by Location As generous as Aldi’s approach can be, there are a few places where the rules are solid and unchangeable.—
Jessica Safavimehr,
Southern Living,
22 Apr. 2026
-
Most of these items can be purchased separately for a reasonable price, so focus more on the unchangeable aspects of the cage when choosing, such as size and accessibility.—
BestReviews,
Chicago Tribune,
20 Apr. 2026
Adjective
-
The bigger lesson from the Strait of Hormuz crisis is that efficiency may work in a stable world, but falls apart in an unstable one.—
Victor Nian,
Fortune,
10 May 2026
-
Chinese state media said the robots can navigate difficult terrain and operate as stable mobile weapons platforms resistant to recoil and blast impacts.—
Bojan Stojkovski,
Interesting Engineering,
10 May 2026
Adjective
-
Through some creative circuitry, chip-scale EPR reverses this setup—using a simple magnet to create an unchanging field and sweeping through a band of oscillation frequencies.—
IEEE Spectrum,
IEEE Spectrum,
30 Apr. 2026
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The images are a clear demonstration of how Mars is far more geologically alive than our almost unchanging moon.—
Keith Cooper,
Space.com,
23 Apr. 2026
Adjective
-
As the Timberwolves desperately searched for an equalizer in the final five minutes, Notre Dame goaltender Kendra DeLawter stood tall in net, robbing two point-blank attempts to preserve the lead for the Cougars.—
Brendan Connelly,
Boston Herald,
9 May 2026
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Leading 4-1 in the fourth, the Falcons had runners on first and second with one out and a chance to extend the lead, but Bram Schwartz came out of the bullpen to get the final two outs, and then pitch a scoreless fifth.—
John Maffei,
San Diego Union-Tribune,
9 May 2026
Adjective
-
Rita Rae is a heart transplant survivor and lives on a fixed income.—
Marvin Hurst,
CBS News,
9 May 2026
-
These included fixed sites, Joint Light Tactical Vehicles, and Infantry Squad Vehicles.—
Sujita Sinha,
Interesting Engineering,
8 May 2026
Adjective
-
San Diego is still young, especially in the back, and is learning hard MLS lessons in real time.—
Eddie Brown,
San Diego Union-Tribune,
9 May 2026
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It’s often been hard to be a local sports fan in Connecticut.—
P.R. Lockhart,
Hartford Courant,
9 May 2026
Cite this Entry
“Hard-and-fast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hard-and-fast. Accessed 11 May. 2026.
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