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 next

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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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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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 Today is a fishing day, and there won’t be enough space on the quay to launch the Jasus Tristani — one of the two rigid inflatable boats (RIBs) operated by Tristan’s Fisheries Department — until all the lobster fishing boats head out to sea. —

NPR, 4 Apr. 2026 My dad had always been rigid and impatient—prone to bouts of anger—and now exasperation became not just a frequent flaw but a full-time operating principle. —

Ashley Parker, The Atlantic, 4 Apr. 2026 The Japanese anime industry operates on an extremely rigid quarterly calendar, in which shows generally all begin around the same time and wrap after three months of airing. —

Wilson Chapman, IndieWire, 3 Apr. 2026 Curved options like this think outside rigid silhouettes, and support a healthy amount of conversation—something that Pop Up Home’s Tricia Benitez Beanum told me all types of couch buyers are looking for. —

Audrey Lee, Architectural Digest, 3 Apr. 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Minnesota also implemented stricter regulations around those products because of the federal prohibition, such as where consumers can buy them.

— Caroline Cummings, CBS News, 7 Apr. 2026
The design process took more than five years, a negotiation between the city’s strict hydraulic requirements and the neighborhood’s shifting wishes; the result was something no one had pictured in advance.

— Eric Klinenberg, New Yorker, 6 Apr. 2026

Definition of strict

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“Rigid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rigid. Accessed 8 Apr. 2026.

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Synonyms of rigid

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