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.

According to a new study, some of the substances that replaced ozone damaging chemicals are now responsible for spreading large amounts of a persistent "forever chemical" across the globe.

From Science Daily • Jun. 9, 2026

Ultimately, Quantinuum’s choppy debut underscores a deeper, persistent truth in quantum computing.

From Barron's • Jun. 9, 2026

China’s export growth accelerated in May, offering a vital lifeline to an economy otherwise bogged down by a persistent domestic slowdown.

From The Wall Street Journal • Jun. 9, 2026

He returned to the squad in November but was forced to miss friendlies in March with a persistent hamstring issue.

From BBC • Jun. 8, 2026

Behind them, row after row of spikes shot toward the ceiling with a persistent thunk, thunk, thunk.

From "The House of Hades" by Rick Riordan

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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