8
threatened(verb, adjective, rare, endangered)
6
endangered(verb, adjective, endangered)
4
jeopardized(verb, endangered)
4
menaced(verb, endangered)
4
risked(verb, endangered)
2
at risk(expression, adjective, idiom, rare, danger)
2
compromised
2
exposed
2
hazarded
2
imperilled
2
jeopardised
1
cornered
1
expounded
1
gambled
1
in danger(expression, adjective, rare, threatened)
1
in extremis
1
jeoparded
1
on the spot(expression, idiom)
1
perilled
1
ventured
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APASmart Define. (2015). imperiled thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/imperiled/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperiled thesaurus" https://smartdefine.org/imperiled/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, imperiled thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/imperiled/thesaurus/synonyms>.
MLASmart Define. "imperiled thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/imperiled/thesaurus/synonyms>