I. ˈvilə̇nəs adjective
Etymology: Middle English villenouse, from Middle French vileneus, from vilein, villain + -eus -ous
1. : befitting a villain : proceeding from or revealing great depravity
a villainous assault
2. : having the character of a villain : depraved
the villainous foe
3. : highly objectionable : mean , bad , wretched , vile , detestable
villainous weather
a villainous jargon
Synonyms: see vicious
II. adverb
: villainously
apes with foreheads villainous low — Shakespeare