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.

She is now enrolled in a psychiatric care programme at a local hospital that, she said, is designed to support people with severe and persistent mental illness who have exhausted all treatment options.

From BBC • May 15, 2026

Scientists have uncovered new evidence that serotonin, a brain chemical best known for helping regulate mood, may also worsen tinnitus, the persistent ringing or buzzing sound that affects millions of people worldwide.

From Science Daily • May 15, 2026

“Inflation may no longer be a short-term cyclical problem; it may be becoming a more persistent investment regime,” said Charu Chanana, chief investment strategist at Saxo Bank.

From Barron's • May 14, 2026

Should a strong El Niño arrive, it could tag team with a current deep persistent marine heat wave off the West Coast.

From Los Angeles Times • May 14, 2026

A persistent bleep, bleep, bleep rose over the rattle of traffic.

From "The Red Car to Hollywood" by Jennie Liu

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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