endangered

adjective

en·​dan·​gered in-ˈdān-jərd 

en-

: being or relating to an endangered species

an endangered bird

put on the endangered list

Synonyms of endangered

• vulnerable
• susceptible
• sensitive
• exposed

Examples of endangered in a Sentence

a daring attempt to rescue the endangered passengers from the burning boat

Recent Examples on the Web

The zoo opened in 1997 and hosts a breeding program for the endangered clouded leopard. — Jim Edwards, Fortune, 1 July 2026

The agency says reports from the public help researchers locate new wintering areas and better understand where the endangered birds are spending time. — Tiffani Jackson, Fort Worth Star-Telegram, 25 June 2026

The second-largest whale species after blue whales, fin whales are classified as an endangered species, according to NOAA. — Thao Nguyen, USA Today, 22 June 2026

Cruz asserted that the fleet causes environmental damage and threatens endangered wildlife. — Zita Ballinger Fletcher, Forbes.com, 30 June 2026

Word History

First Known Use

1964, in the meaning defined above

Phrases Containing endangered

• endangered list
• endangered species

Kids Definition

endangered

adjective

en·​dan·​gered

: threatened with extinction

an endangered species