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Definitions

deter

[dih-tur] / dɪˈtɜr /
VERB
check, inhibit from action
Synonyms
STRONGEST
avert block dampen daunt discourage dissuade forestall frighten hinder impede intimidate obstruct preclude prevent prohibit restrain scare stop
STRONG
caution chill cool damp debar divert forfend obviate warn
WEAK
act like a wet blanket disadvise put a damper on put off rule out shut out stave off talk out of throw cold water on
Antonyms
STRONGEST
advance aid allow assist encourage facilitate forward hearten help incite inspirit permit promote push support
STRONG
heat warm
WEAK
instigate persuade put on to stimulate turn on urge

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.

It first tested shooting down a satellite in 2007, and has since invested in anti-satellite missile systems and an orbital defense system to deter attacks from orbit, along with enhanced space surveillance technologies.

From Salon • Apr. 9, 2026

Iran's nuclear programme was intended to produce more options to deter enemies, whether or not they took the step of turning enriched uranium into a bomb.

From BBC • Apr. 9, 2026

A risk for Venture Global is that higher prices and fears of further bottlenecks might deter Asian nations, a growth market for exporters, from signing new contracts.

From The Wall Street Journal • Apr. 7, 2026

The law would deal "serious punishment" to deter repeat offenders, Cambodian justice minister Koeut Rith told a news conference.

From Barron's • Apr. 3, 2026

Emily gave Jose a small smile of gratitude, but his interjection didn’t deter Mr. Quisling.

From "Book Scavenger" by Jennifer Chambliss Bertman