Definitions

prevent

[pri-vent] / prɪˈvɛnt /

VERB

keep from happening or continuing

Synonyms

STRONGEST

avert avoid bar block counter forbid forestall halt hamper hinder impede inhibit limit preclude prohibit put an end to restrain restrict rule out stop thwart ward off

STRONG

anticipate arrest baffle balk check chill cool cork counteract dam debar foil forfend frustrate intercept interdict interrupt obstruct obviate repress retard

WEAK

dead-end defend against head off hold back hold off keep lid on nip in the bud put a stop to shut out stave off turn aside

Antonyms

STRONGEST

advance aid allow approve assist continue encourage facilitate forward free help let go open permit promote push release support

STRONG

abet heat liberate warm

WEAK

cause

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.

"As a result, those individuals were unaware of the breach and deprived of the opportunity to take steps to prevent secondary harm."

From Barron's • Jun. 11, 2026

“We regret that our proactive measures to prevent secondary harm from last year’s data leak incident, as well as our explanations based on clear facts, were not sufficiently reflected in the PIPC’s decision,” Coupang said.

From The Wall Street Journal • Jun. 11, 2026

The compromise agreement comes after a month of talks in which Ferrari and Audi were leading a push to prevent the move to 60-40 being made in one step for 2027.

From BBC • Jun. 10, 2026

According to the FBI warrant, the officers will seize items in violation of measures to prevent the accidental release of hazardous substances into the air.

From Los Angeles Times • Jun. 10, 2026

Who could prevent more people from falling under Soviet control?

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

Vocabulary lists containing prevent

"Handle with Care"

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The Search Is Over: Synonyms for "Stop"

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1.7.B Using Ice to Keep Orange Groves Warm

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