Synonyms of threatened

Verb

1. endanger, jeopardize, jeopardise, menace, threaten, imperil, peril, exist, be

usage: pose a threat to; present a danger to; "The pollution is endangering the crops"

2. threaten, warn

usage: to utter intentions of injury or punishment against:"He threatened me when I tried to call the police"

3. threaten, bode, portend, auspicate, prognosticate, omen, presage, betoken, foreshadow, augur, foretell, prefigure, forecast, predict

usage: to be a menacing indication of something:"The clouds threaten rain"; "Danger threatens"

Adjective

1. threatened, vulnerable (vs. invulnerable)

usage: (of flora or fauna) likely in the near future to become endangered; "the spotted owl is a threatened species, not yet an endangered one"