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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perilously
adv : in a dangerous manner; "he came dangerously close to falling
off the ledge" [syn: hazardously, dangerously]