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.

“Why did you want to prevent me from walking across the beach?” he said.

From The Wall Street Journal • Jun. 9, 2026

Nicholson - who remains under investigation for trafficking - was given the order by Dumfries Sheriff Court to prevent him moving vessels without providing crew details.

From BBC • Jun. 8, 2026

The idea is that when sterile flies are released into targeted areas, they wold mate with wild screwworm flies and prevent them from reproducing.

From Barron's • Jun. 8, 2026

Kelsey Plum finishes with a team-high 27 points in her first game back from an ankle injury, but it’s not enough to prevent the Sparks from losing 104-96.

From Los Angeles Times • Jun. 7, 2026

In order to prevent any preplanned trickery, the committee changed the Thursday afternoon location to the Post home.

From "American Spirits" by Barb Rosenstock

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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