endangered

1 of 2

adjective

en·​dan·​gered in-ˈdān-jərd 

en-

: being or relating to an endangered species

an endangered bird

put on the endangered list

endangered

2 of 2

past tense and past participle of endanger

Synonyms of endangered

Adjective

• vulnerable
• susceptible
• sensitive
• exposed

Examples of endangered in a Sentence

Adjective

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

Recent Examples on the Web

Adjective

The sites selected for the projects—one in Cook Inlet, Alaska, and one in the Gulf of Maine—are smack in the middle of two endangered whale populations’ habitats. — Ryan Green, Scientific American, 26 Oct. 2026

This is not the only project the Bezos couple has undertaken regarding endangered species. — Lizzie Lanuza, StyleCaster, 23 Oct. 2026

Historic Kansas City, a local historic preservation group, has released its list of the Kansas City area’s most endangered buildings for the first time in five years. — Chris Higgins, Kansas City Star, 20 Oct. 2026

In 2011, former President Barack Obama signed a law removing wolves in the Northern Rocky Mountains from the endangered species list, a change that removed federal prohibitions on killing or harassing them in that region. — Sharon Bernstein, Sacbee.com, 14 Oct. 2026

Word History

First Known Use

Adjective

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