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

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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

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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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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

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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 Edghill said the vessel was fitted with 250 life jackets, two rigid life rafts and six inflatable life rafts. — Arkansas Online, 19 July 2026 Amid noise, close quarters, and rigid routines, interactions become flash points. — Jordan Rau, NPR, 19 July 2026 Another way that the U-Penn system offers a massive improvement over previous rigid and hydrogel electrodes – which poorly adhere to hairy skin, or skin wet from perspiration – is in their actual dermal application. — New Atlas, 18 July 2026 Operating as close as possible to the Libyan search-and-rescue zone, its crew deployed fast rigid inflatable boats (RHIBs) to reach overcrowded inflatable dinghies before larger rescue vessels could arrive. — Isabella Wandermurem, Time, 17 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

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

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

Socialism is an expansive term, applicable both to Scandinavian social democracies with strong private sectors and to authoritarian Communist regimes.

— James Kirchick, The Atlantic, 21 July 2026
The data shows that democracies are overrepresented at the World Cup and also tend to do better than authoritarian nations – but does that matter?

— John A. Tures, Fortune, 19 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

Cite this Entry

Style

“Rigid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rigid. Accessed 24 Jul. 2026.

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Synonyms of rigid

adjective

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