'Imperil' definitions:
Definition of 'imperil'
From: WordNet
verb
Pose a threat to; present a danger to; "The pollution is endangering the crops" [syn: endanger, jeopardize, jeopardise, menace, threaten, imperil, peril]
Definition of 'Imperil'
From: GCIDE
- Imperil \Im*per"il\, v. t. [imp. & p. p. Imperiledor Imperilled; p. pr. & vb. n. Imperiling or Imperilling.] To bring into peril; to endanger. [1913 Webster]