Definition of infamous

• a. - 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.
• a. - Causing or producing infamy; deserving detestation; scandalous to the last degree; as, an infamous act; infamous vices; infamous corruption.
• a. - Branded with infamy by conviction of a crime; as, at common law, an infamous person can not be a witness.
• a. - 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.