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.

Kentucky Congressman Thomas Massie, one of the president's most persistent Republican critics, was defeated by a Trump-backed challenger.

From Barron's • May 26, 2026

The previous longest known event lasted only five days, making the newly observed burst far more persistent than scientists expected.

From Science Daily • May 23, 2026

Denyer said she had been struggling with persistent health issues, which she attempted to manage alongside the long hours and significant responsibility her work entails.

From BBC • May 22, 2026

The Fed’s minutes pointed to a continued wait-and-see stance, albeit with support for rate hikes if inflation proves persistent.

From The Wall Street Journal • May 21, 2026

The steady, persistent mastery of math required more courage and endurance than that one night had demanded—more than he could muster on his own.

From "Tiger Boy" by Mitali Perkins

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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