Felonious /(?)/

Fe·lo·ni·ous

Felonious

a.
  1. Having the quality of felony; malignant; malicious; villainous; traitorous; perfidious; in a legal sense, done with intent to commit a crime; as, felonious homicide.
    O thievish Night, Why should'st thou, but for some felonious end, In thy dark lantern thus close up the stars?