Found 2 items, similar to nefarious.
English → English (WordNet) Definition: nefarious nefarious adj : extremely wicked; “nefarious schemes”; “a villainous plot”; “a villainous band of thieves” [syn: villainous]
English → English (gcide) Definition: Nefarious Nefarious \Ne*fa"ri*ous\, a. [L. nefarius, fr. nefas crime, wrong; ne not + fas divine law; akin to fari to speak. See No, adv., and Fate.] Wicked in the extreme; abominable; iniquitous; atrociously villainous; execrable; detestably vile. [1913 Webster] Syn: Iniquitous; detestable; horrible; heinious; atrocious; infamous; impious. See Iniquitous. [1913 Webster] -- Ne*fa"ri*ous*ly, adv. -- Ne*fa"ri*ous*ness, n. [1913 Webster]