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

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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 The towering heel and counter dramatically curve outward from top to bottom, shifting away from rigid traditional stilettos and giving the shoes a more artistic flair. — Karla Rodriguez, Footwear News, 28 Sep. 2026 With no jointed parts and no empty space inside, the frame stays rigid and the gaps between pieces stay tight. — Andrew J. Hawkins, The Verge, 28 Sep. 2026 The device straps on like a rigid vest, with bands securing the torso, waist, thighs, legs, and feet. — New Atlas, 27 Sep. 2026 Travis said their products are essential for managing temperature changes and preventing catastrophic failures in rigid piping systems. — Kevin Williams, CNBC, 26 Sep. 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Pan, a pediatrician, made national headlines while in the Legislature for leading California’s efforts to enact strict school vaccine laws.

— Mathew Miranda, Sacbee.com, 3 Oct. 2026
The new details raised questions about how thoroughly FlyDubai vets potential employees, and how the co-pilot's presence on a flight filled with Israeli passengers got past Israel's strict security protocols.

— ABC News, ABC News, 3 Oct. 2026

Definition of strict

Adjective

Now, Germino says her social media presence is all about giving other patients going through the same tough decision an example of someone who’s thriving after the procedure.

— Kara McGrath, Allure, 6 Oct. 2026
Prime Minister Sébastien Lecornu's administration is about to start tough budget negotiations against a backdrop of division and economic turmoil.

— Chloe Taylor,Jenni Reid, CNBC, 6 Oct. 2026

Definition of tough

Adjective

However, further Houthi offensives have met stiffer resistance from the recuperated forces of the Presidential Leadership Council, depriving the group of another quick victory.

— Brady Knox, The Washington Examiner, 4 Oct. 2026
Everywhere are cosseting details like stiffer mounting bushes and extra damping bars.

— New Atlas, New Atlas, 2 Oct. 2026

Definition of stiff

Adjective

Every dollar poured in weaves the technology’s success and the US economy tighter and tighter together.

— Yerbol Orynbayev, Fortune, 3 Oct. 2026
Similar tensions are emerging in South Korea, with growing opposition to data centers near residential areas and proposals for tighter local restrictions, even as the national government pushes to accelerate development.

— April Roach,Jenny Lee, CNBC, 3 Oct. 2026

Definition of tight

Adjective

The list takes months to compile, with multiple steps and checks designed to ensure the ranking is rigorous and consistent.

— Kelli Grant, CFP®,Riley de León, CNBC, 8 Oct. 2026
With rigorous reporting and more than 150 interviews with those working for the US’ most influential AI companies, technology journalist Roose covers Silicon Valley’s breakneck race to build artificial general intelligence.

— Mary Lawrence Ware, semafor.com, 6 Oct. 2026

Definition of rigorous

Adjective

The Fed's protective umbrella helps the dollar's appeal among global investors, who can't be fully confident that funds invested into authoritarian China can be safely taken out of the country.

— Matt Peterson, CNBC, 6 Oct. 2026
Soon after the photo was taken, pro-Chinese Communist Party activists there began assaulting protesters of Xi's authoritarian regime — though there is no evidence Zhang was involved in any attacks.

— Adam Yamaguchi, CBS News, 6 Oct. 2026

Definition of authoritarian

Adjective

Officials at the meeting discussed the rise in yields, attributing them to expectations for higher rates from the Fed as well as the build-out in artificial intelligence and solid economic growth.

— Jeff Cox, CNBC, 7 Oct. 2026
All of these features sit on a durable Goodyear® Performance Outsole, so from the heel to the toe and from the top to the bottom, their feet are in for a solid, supportive run.

— Katie Decker-Jacoby, StyleCaster, 7 Oct. 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 9 Oct. 2026.

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Synonyms of rigid

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