Perilous
Perilous , adjective
[Old French perillous, perilleus, French périlleux, Latin periculosus. See Peril.]
1.
Full of, attended with, or involving, peril; dangerous; hazardous; as, a perilous undertaking.
Infamous hills, and sandy, perilous wilds.
2.
Daring; reckless; dangerous. [Obsolete] — Latimer
For I am perilous with knife in hand.