The definition of notorious is well known for an undesirable trait or for any particular trait.(adjective)
See notorious in Webster's New World College Dictionary
Origin: ML notorius < LL notoria, news, information < notus: see note
See notorious in American Heritage Dictionary 4
Origin: From Medieval Latin nōtōrius, well-known
Origin: , from Latin nōtus, known
Origin: , past participle of nōscere, to get to know; see gnō- in Indo-European roots.
Learn more about notorious