n. a person who has an obsession with or excessive enthusiasm for something

n. an advocate of anarchism

n. a prejudiced person who is intolerant of any opinions differing from his own

n. a whimsically eccentric person

n. a carnival performer who does disgusting acts

n. a person who holds extreme views

n. an ardent follower and admirer

n. a person motivated by irrational enthusiasm (as for a cause); "A fanatic is one who can't change his mind and won't change the subject"--Winston Churchill

n. someone who travels behind or pursues another

n. someone regarded as eccentric or crazy and standing out from a group

n. a person afflicted with paranoia

n. a member of an ancient Jewish sect in Judea in the first century who fought to the death against the Romans and who killed or persecuted Jews who collaborated with the Romans

n. a person whose behavior deviates from what is acceptable especially in sexual behavior

n. a radical supporter of political or social revolution

n. someone who is afflicted with schizophrenia

n. an enthusiastic devotee of sports

n. a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"

n. one who adheres to traditional views