a. 坏人似的, 恶棍的, 罪恶的, 极坏的

[法] 歹徒的:邪恶的, 恶的

[ adj ]
extremely wicked
<adj.all>
nefarious schemesa villainous plot
a villainous band of thieves

Villainous \Vil"lain*ous\, a. [Written also villanous.]
1. Base; vile; mean; depraved; as, a villainous person or
wretch.

2. Proceeding from, or showing, extreme depravity; suited to
a villain; as, a villainous action.

3. Sorry; mean; mischievous; -- in a familiar sense. ``A
villainous trick of thine eye.'' --Shak.

{Villainous judgment} (O. E. Law), a judgment that casts
reproach on the guilty person.
※ --- {Vil"lain*ous*ly}, adv.
{Vil"lain*ous*ness}, n.