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

While filming, the cast follow stringent guidelines that prevent them from communicating with one another when cameras are down, or even connecting with people outside of the show. —Rebecca Aizin, PEOPLE, 9 Jan. 2026

According to Brown, after stringent authentication processes are followed, jewelry is typically polished before being listed, while handbags are professionally cleaned. —Nia Bowers, USA Today, 8 Jan. 2026

Mertz said the city’s willingness to exempt itself from its own requirements underscores a frustration builders have been raising since Kansas City adopted more stringent energy codes tied to the 2021 International Energy Conservation Code. —David Hudnall, Kansas City Star, 8 Jan. 2026

Shifting plans Many of the new efforts go against Stellantis’ previous plans to discontinue gas V-8 vehicles amid more stringent fuel economy regulations and penalties. —Michael Wayland, CNBC, 1 Jan. 2026

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