stringent

adjective

strin·​gent ˈstrin-jənt 

1

: tight, constricted

2

: marked by rigor, strictness, or severity especially with regard to rule or standard

stringent decontamination procedures

3

: marked by money scarcity and credit strictness

a stringent budget

stringently adverb

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How Should You Use stringent?

Words that are synonymous with stringent include rigid, which implies uncompromising inflexibility ("rigid rules of conduct"), and rigorous, which suggests hardship and difficulty ("the rigorous training of firefighters"). Also closely related is strict, which emphasizes undeviating conformity to rules, standards, or requirements ("strict enforcement of the law"). Stringent usually involves severe, tight restrictions or limitations ("the college has stringent admissions rules"). That's logical. After all, rigorous and rigid are both derived from rigēre, the Latin word meaning "to be stiff," and stringent and strict developed from the Latin verb stringere, meaning "to bind tight."

Synonyms of stringent

• strict
• rigorous

Choose the Right Synonym for stringent

rigid, rigorous, strict, stringent mean extremely severe or stern.

rigid implies uncompromising inflexibility.

rigid rules of conduct

rigorous implies the imposition of hardship and difficulty.

the rigorous training of recruits

strict emphasizes undeviating conformity to rules, standards, or requirements.

strict enforcement of the law

stringent suggests severe, tight restriction or limitation.

stringent standards of admission

Examples of stringent in a Sentence

stringent rules against unauthorized persons being in the building

Recent Examples on the Web

The firm focuses on large money center banks and stringent bond documentation. —Michelle Fox, CNBC, 5 Nov. 2025

This is a critical development in that Newsom’s administration has imposed the most stringent fuel standards in the country — standards that demand the production of a unique blend of gasoline known as California Reformulated Gasoline. —Will Oneill, San Diego Union-Tribune, 3 Nov. 2025

The Pentagon recently imposed the most stringent access restrictions of the term, requiring that all reporters covering the Defense Department in person sign a restrictive press policy prohibiting them from soliciting any information the department has not authorized for release. —Scott Nover, Arkansas Online, 2 Nov. 2025

And in 2019, an Indonesian court ordered the country to establish more stringent national and regional air quality standards in response to a citizen lawsuit. —Angelica Ang, Fortune, 27 Oct. 2025

Word History

Etymology

Latin stringent-, stringens, present participle of stringere

First Known Use

1736, in the meaning defined at sense 1

Rhymes for stringent

• astringent
• contingent
• birefringent

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Kids Definition

stringent

adjective

strin·​gent ˈstrin-jənt 

1

: tying, drawing, or pressing tight

2

: strict in setting standards or following rules

stringent training

stringently adverb