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.

By prescribing GLP-1 medications early, doctors say they aim to prevent lifelong obesity and complications such as Type 2 diabetes and high blood pressure, which are showing up in teens and even younger children.

From The Wall Street Journal • Jun. 22, 2026

However, no approved vaccines or medications currently exist to prevent or treat Bundibugyo ebolavirus.

From Science Daily • Jun. 22, 2026

He also took steps to prevent fentanyl overdoses and reduce absenteeism.

From Los Angeles Times • Jun. 22, 2026

They said they consumed raw dairy because they wanted to reduce their inflammation, and avoid additives, and prevent lactose intolerance, and clear their skin, and bring their hormones into balance.

From Salon • Jun. 22, 2026

He pulled his hands close to his chest, like that would prevent his magic from being taken.

From Anya and the Nightingale by Sofiya Pasternack

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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