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

Synonyms & Similar Words

Relevance

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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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 Compared with rigid metal meshes, CNTF fabrics showed more uniform heating behavior and fewer hot spots. —

Aamir Khollam, Interesting Engineering, 6 Mar. 2026 From testing in the mountains and then in wind tunnels — he was analyzed in 14 positions — Toyota designed an aerodynamically superior ski that was 15 percent lighter and had a frame three times more rigid. —

Liam Tharme, New York Times, 6 Mar. 2026 Someone who has been submerged in water may have no circulation to their extremities, may not have an obvious pulse and may be rigid in a way that is consistent with death, LoVecchio said. —

Stephanie Innes, AZCentral.com, 5 Mar. 2026 The improvements are time-sensitive due to the rigid schedules of sports seasons and must be completed in July or wait another year, Cishek said. —

Charlotte Observer, 5 Mar. 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Such improvements are crucial for devices like drones that operate with strict limitations on computing power and battery capacity, according to a press release.

— Prabhat Ranjan Mishra, Interesting Engineering, 9 Mar. 2026
Wife killed in February airstrikes Mojtaba Khamenei was a particular target for criticism by protesters during unrest over the death of a young woman in police custody in 2022, after she was arrested for allegedly breaching the Islamic Republic's strict dress codes.

— James Powel, USA Today, 9 Mar. 2026