Villainous \Vil"lain*ous\, a. [Written also villanous.]

[1913 Webster]

1. Base; vile; mean; depraved; as, a villainous person or wretch. [1913 Webster]

2. Proceeding from, or showing, extreme depravity; suited to a villain; as, a villainous action. [1913 Webster]

3. Sorry; mean; mischievous; -- in a familiar sense. "A villainous trick of thine eye." --Shak. [1913 Webster]

Villainous judgment (O. E. Law), a judgment that casts reproach on the guilty person. [1913 Webster] --- Vil"lain*ous*ly, adv. Vil"lain*ous*ness, n. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

121 Moby Thesaurus words for "villainous": abandoned, abominable, arrant, atrocious, awful, bad, base, beastly, beneath contempt, bent, black, blackguardly, blamable, blameworthy, brutal, contemptible, contrary, corrupt, criminal, crooked, damnable, dark, debased, degenerate, degraded, deplorable, despicable, detestable, dire, disgraceful, disgusting, dishonest, dissolute, dreadful, egregious, enormous, evil, execrable, faithless, felonious, fetid, filthy, flagitious, flagrant, foul, fulsome, grievous, gross, hateful, heinous, horrible, horrid, improper, infamous, iniquitous, knavish, lamentable, loathsome, lousy, low, miscreant, monstrous, murderous, nasty, naughty, nefarious, noisome, notorious, objectionable, obnoxious, odious, offensive, outrageous, peccant, perfidious, perverse, perverted, pitiable, pitiful, profligate, putrid, rank, rascally, recreant, regrettable, reprehensible, reprobate, repulsive, roguish, rotten, sad, scampish, scandalous, schlock, scoundrelly, scurvy, shabby, shameful, shocking, shoddy, sinful, sordid, squalid, terrible, too bad, traitorous, treacherous, unclean, unforgivable, unpardonable, unscrupulous, unspeakable, unworthy, vicious, vile, wicked, woeful, worst, worthless, wretched, wrong

Source: Moby Thesaurus II by Grady Ward, 1.0
 

villainous adj : extremely wicked; "nefarious schemes"; "a villainous plot"; "a villainous band of thieves" [syn: nefarious]

Source: WordNet (r) 2.0
 

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.

Source: Webster's Revised Unabridged Dictionary (1913)