I.ready to do anything wicked, knavish, villanous, Aesch., etc.:—as Subst. a knave, rogue, villain, Eur., Ar.; τὰ π. the knavish sort, Soph.; but also = πανουργία, id=Soph.:—comp. -ότερος, Sup. -ότατος, Ar.
II.in a less positively bad sense, cunning, crafty, clever, smart, Plat., etc.