1. Of very bad report; having a reputation of the worst kind; held in abhorrence; guilty of something that exposes to infamy; base; notoriously vile; detestable; as, an infamous traitor; an infamous perjurer. False errant knight, infamous, and forsworn. (Spenser)
2. Causing or producing infamy; deserving detestation; scandalous to the last degree; as, an infamous act; infamous vices; infamous corruption.
4. Having a bad name as being the place where an odious crime was committed, or as being associated with something detestable; hence, unlucky; perilous; dangerous. Infamous woods. Infamous hills, and sandy perilous wilds. (Milton) The piny shade More infamous by cursed Lycaon made. (Dryden)
Origin: Pref. In- not _ famous: cf. L. Infamis. See Infamy.