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 Owners also seek to implement an international draft and slash the amateur bonus pool from $360 million to $200 million, with rigid slot numbers. — Dan Freedman, Forbes.com, 11 July 2026 In laboratory tests, fleets of four and eight robots autonomously assembled into target structures, disconnected, reassembled into new shapes, and operated as a single rigid vessel capable of collective movement. — Jijo Malayil, Interesting Engineering, 10 July 2026 The out-of-date Harold’s Chicken Shack company website lists 47 official franchise locations nationwide, primarily through brand licensing rather than a traditional, rigid corporate structure. — Sam Charles, Chicago Tribune, 9 July 2026 The final and most rigid factor is the personal and physical cost of being on the road after dark. — Christopher S. Tang, The Conversation, 8 July 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Though South Florida abides by strict statewide building codes to protect against wind and flooding, Lejeune is concerned that no new construction has been tested by destructive storms.

— Jacqui Palumbo, CNN Money, 21 July 2026
In the 2026 session, the Legislature passed HB 991, an elections bill that requires strict proof of citizenship to vote and reduces the forms of photo ID that are acceptable at the polls.

— Eric "Doc" Stelnicki, Sun Sentinel, 20 July 2026

Definition of strict

Adjective

White, when give the chance, has displayed a diverse offensive game, a defensive bent and an ability to make tough shots.

— Barry Jackson, Miami Herald, 17 July 2026
The stakes for new avatar don’t feel quite as high—the specific circumstances around the former was a perfect storm that'll be tough to duplicate—but the music isn’t any less potent for it.

— Lawrence Burney, Pitchfork, 16 July 2026

Definition of tough

Adjective

Essentially a rock has met a hard place – at the mouth of the Persian Gulf.

— Tim Lister, CNN Money, 20 July 2026
Remember, all this hard work to discover all these things has been done in the midst of designing a ballroom, cleaning up the reflecting pool and a host of other busy things the president and his administration have been doing.

— Letters to the Editor, The Orlando Sentinel, 19 July 2026

Definition of hard

Adjective

No one really wants to keep wearing their stiff, uncomfortable boots after arriving back at camp following a long, challenging day on the trail.

— New Atlas, New Atlas, 14 July 2026
Traditional volume and texture sprays are notorious for leaving hair feeling like dry, stiff straw.

— ABC News, ABC News, 14 July 2026

Definition of stiff

Adjective

Slots and gates are valuable in congested airports like LaGuardia because tight airspace restrictions and crowded airports in a big city like New York cap airline growth.

— Leslie Josephs, CNBC, 20 July 2026
Her tight smile squeezes tiny tears into the corners of her eyes.

— Literary Hub, Literary Hub, 20 July 2026

Definition of tight

Adjective

For more than two decades, the duo hauled in more than 4 pounds of clams each morning from the lagoon in the Po River Delta — upending the notion that women were unsuited for such a rigorous job.

— Kasha Patel, CNN Money, 18 July 2026
Over the summer, kids might not have had to stick to a rigorous morning routine, but that all changes during the school year.

— Parents, Parents, 17 July 2026

Definition of rigorous

Adjective

Still, the dominant message from the hearing was that Maduro’s removal has not, by itself, dismantled the authoritarian system that sustained his rule.

— Antonio María Delgado, Miami Herald, 15 July 2026
But in the past 20 years, Cuba’s more progressive social policies have helped to redeem the authoritarian excesses of the revolution’s early years.

— Juan Carlos Albarran, The Conversation, 13 July 2026

Definition of authoritarian

Adjective

Favorable rainfall trends across major producing nations, including Spain, have paved the way for a solid global yield for the upcoming harvest, Valdés said, consolidating a more robust and balanced global supply.

— Sam Meredith, CNBC, 17 July 2026
To solve this degradation problem, the research team focused on a specific sulfide solid electrolyte known as lithium phosphorus sulfur chloride (LPSCl).

— Mrigakshi Dixit, Interesting Engineering, 17 July 2026

Definition of solid

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“Rigid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rigid. Accessed 21 Jul. 2026.

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Synonyms of rigid

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