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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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

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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 The regulations issued in 2024 made many of those changes permanent, and more broadly, pushed clinics and state-level regulators to leave punitive, rigid attitudes in the past. — Lev Facher, STAT, 14 Aug. 2026 Overly rigid implementation could also obstruct productive work. — Kavin Bendre, Chicago Tribune, 13 Aug. 2026 In a real estate market often defined by red tape and rigid processes, one Hudson Valley company is betting on a different approach entirely. — Ascend Agency, New York Daily News, 13 Aug. 2026 The denim is also not the starchy, rigid stuff most of us tend to avoid. — Shea Simmons, PEOPLE, 13 Aug. 2026 See All Example Sentences for rigid

Recent Examples of Synonyms for rigid

Adjective

Under this administration, those rules and the ramifications for breaking them have gotten even stricter.

— Kat Lonsdorf, NPR, 24 Aug. 2026
These former champions of AI data center investment in their states are now placing stricter standards on construction projects and requiring additional disclosures to root out more speculative activity.

— Jeff Marks, CNBC, 24 Aug. 2026

Definition of strict

Adjective

With men on first and third and nobody out that inning, second baseman Jackson Holliday fielded a tough grounder and threw to second, but shortstop Gunnar Henderson dropped the ball for an error and everyone was safe.

— CBS News, CBS News, 21 Aug. 2026
As for footwear sales in the region, the second quarter saw a slowdown of sales of high-heat product, alongside tougher comparatives and ongoing softness in end-of-cycle footwear product lines.

— Stephen Garner, Footwear News, 20 Aug. 2026

Definition of tough

Adjective

Sunday’s game was the first time since Cunningham was taken down by the Sky’s DiJonai Carrington on a hard foul on a fast break earlier this month.

— Jay Cohen, Chicago Tribune, 24 Aug. 2026
Other majors, such as engineering, with its extensive math requirements, have been harder to shrink.

— ABC News, ABC News, 24 Aug. 2026

Definition of hard

Adjective

The service Service here is warm and deeply personal rather than stiff or overly formal.

— Condé Nast, Condé Nast Traveler, 19 Aug. 2026
That double-helix structure is the secret to the tusk’s remarkable stiffness and strength, with the flexible fibers and stiff mineral matrix enabling the tusk to withstand strong forces, like bending and twisting without cracking.

— Jennifer Ouellette, ArsTechnica, 18 Aug. 2026

Definition of stiff

Adjective

Local institutions — already facing shortages of foreign currency and tight liquidity — must raise capital to finance such a sale, but MTN expects the transaction to close by year-end.

— Tiisetso Motsoeneng, semafor.com, 24 Aug. 2026
Graham Nordone and Norman are locked in a tight contest, according to polls.

— Naomi Lim, The Washington Examiner, 24 Aug. 2026

Definition of tight

Adjective

Building trust requires a strong data foundation, rigorous quality standards and clear visibility into how insights are generated.

— David Tobias, Forbes.com, 21 Aug. 2026
Every personal finance product review is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of mortgage products.

— Kelsey Neubauer, CNBC, 21 Aug. 2026

Definition of rigorous

Adjective

As Bukele gained popularity, there were internal discussions on how best to signal the Administration’s concerns about his increasingly authoritarian actions.

— Daniel Castro, New Yorker, 18 Aug. 2026
The island’s very existence—a prosperous, democratic Chinese society integrated with the West—offers a stinging rebuke to the claim that authoritarian rule is uniquely suited to the Chinese people.

— Charlie Campbell, Time, 11 Aug. 2026

Definition of authoritarian

Adjective

Investigators have repeatedly dismissed the theories, saying there is no solid evidence to support the claims.

— Elizabeth Wolfe, CNN Money, 21 Aug. 2026
More Unlike oil which accounts for 95% of foreign exchange earnings, solid minerals have long accounted for barely 1% of Nigeria’s economy.

— Alexander Onukwue, semafor.com, 21 Aug. 2026

Definition of solid

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“Rigid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rigid. Accessed 25 Aug. 2026.

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Synonyms of rigid

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