Definitions

persistent

[per-sis-tuhnt, -zis-] / pərˈsɪs tənt, -ˈzɪs- /

ADJECTIVE

determined; continuous

Synonyms

STRONGEST

constant continual endless enduring incessant insistent perpetual relentless repeated resolute steadfast steady stubborn tenacious unrelenting unremitting

WEAK

assiduous bound bound and determined bulldogged dogged firm fixed immovable in for long haul indefatigable interminable like bad penny never-ending obdurate obstinate perseverant persevering persisting pertinacious sticky tireless unflagging unshakable

Antonyms

STRONGEST

broken ceasing disloyal ending inconstant intermittent interrupted merciful stopping sympathetic temporary terminable unstable unsteady untrustworthy weak yielding

WEAK

lazy relenting surrendering

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"There is a need to address environmental TFA pollution because it is widespread, highly persistent, and levels are increasing," said Professor Hossaini.

From Science Daily • Jun. 9, 2026

These moves can position your portfolio for persistent, elevated inflation:

From MarketWatch • Jun. 8, 2026

Yields rose Friday because investors anticipated some combination of a Fed that raises rates, more persistent price pressures, or both.

From The Wall Street Journal • Jun. 6, 2026

Fewer than 10 overs were possible because of persistent rain on day three, but Ollie Robinson was still able to claim the important wickets of Rachin Ravindra and Daryl Mitchell.

From BBC • Jun. 6, 2026

He bristled at the persistent belief that John Root deserved most of the credit for the beauty of the fair.

From "The Devil in the White City" by Erik Larson

Vocabulary lists containing persistent

100 Words Every Middle Schooler Should Know

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List 3

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The Absolutely True Diary of a Part-Time Indian

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