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.

The researchers concluded that prenatal exposure to CPF appears to cause persistent disturbances in brain development that are proportional to the amount of exposure a child received before birth.

From Science Daily • May 21, 2026

This approach is known as defending forward, or persistent engagement.

From Salon • May 21, 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

At the same time, successive governments have failed to "get a grip" on the persistent shortage of appropriate placements for these children, according to Dr Kerr.

From BBC • May 20, 2026

The way I feel about him is like a heartbeat—soft and persistent, underlying everything.

From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli

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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