1. putting someone or something in danger; threatening with harm or destruction
Usage: present participle of imperil

Examples

• The storm was imperiling the small fishing boats.
• His reckless driving was imperiling the lives of other passengers.
• The company’s poor decisions were imperiling its future.
• Climate change is imperiling many species of wildlife.
• The leak was imperiling the safety of the entire building.
• Her illness was imperiling her chances of graduation.