endangered

(verb) pose a threat to; present a danger to. Synonyms: endanger, jeopardize, jeopardise, menace, threaten, imperil, peril. Example: "The pollution is endangering the crops."

(verb) put in a dangerous, disadvantageous, or difficult position. Synonyms: queer, expose, scupper, endanger, peril.

(adj) (of flora or fauna) in imminent danger of extinction. Example: "An endangered species."