RIGID Synonyms: 187 Similar and Opposite Words

Q: How is the word 'rigid' distinct from other similar adjectives?

Some common synonyms of rigid are rigorous , strict , and stringent . While all these words mean "extremely severe or stern," rigid implies uncompromising inflexibility. // rigid rules of conduct

Q: When would 'rigorous' be a good substitute for 'rigid'?

The synonyms rigorous and rigid are sometimes interchangeable, but rigorous implies the imposition of hardship and difficulty. // the rigorous training of recruits

Q: When might 'strict' be a better fit than 'rigid'?

The words strict and rigid can be used in similar contexts, but strict emphasizes undeviating conformity to rules, standards, or requirements. // strict enforcement of the law

Q: When could 'stringent' be used to replace 'rigid'?

Although the words stringent and rigid have much in common, stringent suggests severe, tight restriction or limitation. // stringent standards of admission

rigid

adjective

ˈri-jəd

Definition of rigid

as in strict

not allowing for any exceptions or loosening of standards rigid enforcement of drug laws

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in tough

given to exacting standards of discipline and self-restraint a rigid man who cannot seem to relax

Synonyms & Similar Words

Antonyms & Near Antonyms

as in hard

having a consistency that does not easily yield to pressure rigid steel bars that should be able to hold the weight

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Antonyms & Near Antonyms

as in stiff

incapable of or highly resistant to bending corsets, those rigid undergarments for women, must have been murder to wear

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Antonyms & Near Antonyms

as in tight

stretched with little or no give make sure that the clothesline is rigid so that the longer garments don't drag on the ground

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word rigid distinct from other similar adjectives?

Some common synonyms of rigid are rigorous, strict, and stringent. While all these words mean "extremely severe or stern," rigid implies uncompromising inflexibility.

rigid rules of conduct

When would rigorous be a good substitute for rigid?

The synonyms rigorous and rigid are sometimes interchangeable, but rigorous implies the imposition of hardship and difficulty.

the rigorous training of recruits

When might strict be a better fit than rigid?

The words strict and rigid can be used in similar contexts, but strict emphasizes undeviating conformity to rules, standards, or requirements.

strict enforcement of the law

When could stringent be used to replace rigid?

Although the words stringent and rigid have much in common, stringent suggests severe, tight restriction or limitation.

stringent standards of admission

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 rigid Their teenage children form a fast bond with a neighboring family as unease begins to simmer around their rigid beliefs. — Melanie Goodfellow, Deadline, 27 Aug. 2026 Incorporating silk into denim significantly reduces the stiffness typically associated with rigid constructions—qualities that mills have long pursued through loose weaves, lyocell blends, enzyme washing and more. — Angela Velasquez, Footwear News, 27 Aug. 2026 All that remains are multibillion-dollar deficits, looming compliance deadlines and a rigid, top-down funding apparatus that is pushing local governments and school systems over a fiscal cliff. — Chris Roemer, Baltimore Sun, 27 Aug. 2026 Likewise, some commenters who work in nutrition raised an even more serious point that an overly rigid approach to certain foods can sometimes do more harm than good to a kid’s relationship with food. — Sarah Scott, Parents, 27 Aug. 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Legitimate alcohol manufacturers use strict quality controls, and all their products undergo extensive testing, which is expensive and takes quite a bit of time.

— Maryna Holovnova, New Atlas, 31 Aug. 2026
California has strict laws aimed at preventing collisions between cars and bikes.

— Sacbee.com, Sacbee.com, 31 Aug. 2026

Definition of strict

Adjective

Space-grade electronics will cost more, and the ball’s shell—made from a material tough enough to roll over steel shards and withstand minus 184 °C temperatures—has never been evaluated in lunar extremes.

— IEEE Spectrum, IEEE Spectrum, 3 Sep. 2026
Democratic leaders face tough decisions on where to spend limited party resources to win the Senate majority.

— Burgess Everett, semafor.com, 3 Sep. 2026

Definition of tough

Adjective

Dow stood with three tattooed and shirtless jumpers, weaving white paracord through hooks in the canvas and cinching it tight.

— M. R. O’Connor, New Yorker, 31 Aug. 2026
Given the tight timeframe before the election, Sher is seeking both temporary relief and an interim injunction in the petition to ensure eligible citizens are not disenfranchised while bureaucratic procedures are reviewed.

— Natasha Mozgovaya, Sun Sentinel, 31 Aug. 2026

Definition of tight

Adjective

Every personal finance review is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of home loan products.

— Kelsey Neubauer, CNBC, 28 Aug. 2026
But alongside serious thinkers such as Rankine, Ta-Nehisi Coates, and Saidiya Hartman, less rigorous writers and ideas were also elevated.

— Charles Finch, The Atlantic, 28 Aug. 2026

Definition of rigorous

Adjective

Castro’s death could also spark the sort of power struggles among factions that usually follow the death of an authoritarian leader.

— Nora Gámez Torres, Miami Herald, 2 Sep. 2026
By eroding the feedback loop that every stable government—even the most authoritarian—needs to stay in power, the Putin regime is becoming less capable of understanding the real condition of Russia.

— Andrei Soldatov, Foreign Affairs, 31 Aug. 2026

Definition of authoritarian

Adjective

Made with solid brush fibers, the applicator combs and controls the placement of the product so the finish is clump-free.

— Kaleigh Werner, Footwear News, 28 Aug. 2026
Minasian didn’t deny that there have been problems in the ninth inning, and his larger point was that the Giants have solid relievers who can be part of a good bullpen.

— Justice delos Santos, Mercury News, 28 Aug. 2026

Definition of solid

Cite this Entry

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“Rigid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rigid. Accessed 4 Sep. 2026.

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Synonyms of rigid

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