per·il·ous /ˈpɛrələs/
 (a.)危險的
 Per·il·ous a.  [Written also perillous.]
 1. Full of, attended with, or involving, peril; dangerous; hazardous; as, a perilous undertaking.
    Infamous hills, and sandy, perilous wilds.   --Milton.
 2. Daring; reckless; dangerous. [Obs.]
    For I am perilous with knife in hand.   --Chaucer.
 -- Per*il*ous*ly, adv. -- Per*il*ous*ness, n.
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 perilous
      adj : fraught with danger; "dangerous waters"; "a parlous journey
            on stormy seas"; "a perilous voyage across the Atlantic
            in a small boat"; "the precarious life of an undersea
            diver"; "dangerous surgery followed by a touch-and-go
            recovery" [syn: parlous, precarious, touch-and-go]