adjective Having a bad reputation; disreputable; notorious; unpleasant or evil; widely known, especially for something scornful.
He was an infamous traitor.
adjective Causing infamy; disgraceful.
This infamous deed tarnishes all involved.
adjective Subject to a judicial punishment depriving (the person) of certain rights (e.g. the rights to hold public office, exercise the franchise, receive a public pension, serve on a jury, or give testimony in a court of law).