Synonyms of imperil

imperil

verb

im-ˈper-əl 

as in to endanger

to place in danger

a single mistake could imperil the lives of everyone involved in the military operation

Synonyms & Similar Words

• endanger
• threaten
• risk
• jeopardize
• compromise
• menace
• adventure
• peril
• venture
• hazard
• jeopard
• gamble (with)
• intimidate
• subject
• expose
• wager
• chance

Antonyms & Near Antonyms

• protect
• preserve
• guard
• shelter
• save
• shield
• resume

Example Sentences

Recent Examples of imperil

Ten Democratic lawmakers told Defense Secretary Pete Hegseth in a letter Sunday that his gutting of a program focused on protecting civilians is a leadership failure that imperils service members and erodes the military’s moral standing. — Hannah Allam, ProPublica, 6 July 2026

When the Phillies lost 19 of their first 28 games and the whole summer felt imperiled, some corners of the organization wondered if the first All-Star Game at Citizens Bank Park would showcase anything good about the local team. — Matt Gelb, New York Times, 5 July 2026

Efforts to reopen the Strait of Hormuz without Iran’s direct oversight sparked the days of crossfire and have imperiled the talks for a lasting ceasefire. — Jon Gambrell, Chicago Tribune, 28 June 2026

The latest truce agreement was reached after the two sides traded deadly fire on Friday, imperiling negotiations to reach a final peace deal between the United States and Iran. — Caitlin Danaher, CNN Money, 20 June 2026