dangerously unstable and unpredictable; treacherous winding roads; an unreliable trestle

[ Syn: unreliable ]

tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans; Punic faith; the perfidious Judas; the fiercest and most treacherous of foes; treacherous intrigues

[ Syn: punic , perfidious ]