One who has beliefs which are highly disagreeable to the vast majority of the population.
People who want to abolish the government, those who want to kill all people of a specific ethnic group, and those who advocate complete laissez-faire capitalism are all extremists.
Somebody that thinks differently than you. Anybody that has an opinion that differs from current government policy. This term allows politicians to speak of their rival's agendas without actually having to explain exactly what their rival's beliefs are.
The war on Iraq was supported by right-wing extremists.
The World Trade Center was attacked by religious extremists.
The anti-war protesters were leftwing extremists.
AN EXTREMIST IS SOMEONE WHO SUPPORTS AN IDEA, CAUSE, OR SET OF VALUES SO ADAMANTLY AND WITHOUT COMPROMISE THAT SAID PERSON WILL USE THEIR IDEAS TO JUSTIFY ANYTHING THEY DO. This term can be applied to ANYONE regardless of factors as universal as;ETHNICITY(African, Caucasian, Hispanic, Arabic, Southeast Asian etc)GENDER/ORIENTATION(Male, Female, transgendered, homosexual, heterosexual,bisexual,)RELIGIOUS AFFILIATION(or lack thereof)(Hinduism, Christianity, Islam, Judaism, Sikhism etc)OCCUPATION!!!(Teacher, politician, musician, clergman/woman, soldier etc)...Or as regional (BECAUSE SOME OF US DON"T PRESCRIBE TO THIS) as;POLITICAL PARTY MEMBERSHIP(Republican, Democrat, Libertarian, Conservative, etc)POLITICAL PHILOSOPHY(Communism, Socialism, Anarchism, Nationalism, etc)SELF-PRESCRIBED CULTURAL IDENTITY(Punk, Gangsta, Hippie, Goth, etc)all because extremism does not discriminate, although its practitioners do. Also, please note that few extreme individuals who possess a thorough understanding of the term and its implications actually CHOOSE to describe themselves as "extremists". The truth of the matter is that EXTREMISTS ARE BY DEFINITION ALMOST ENTIRELY IMMERSED IN THEIR INDIVIDUAL AND/OR SHARED SENSE OF SUPERIORITY. THEREFORE THEY TYPICALLY CONVINCE THEMSELVES THAT THEIR PARTICULAR STRAIN OF EXTREMISM IS NOT "EXTREME". IN THE WARPED MIND OF THE EXTREMIST, EXTREMISM IS THE ONLY RATIONAL COURSE!
Although these examples are commonly known, I have included them because their connotations with extremism are obvious:
( because in his mind any act that furthered his plans for world domination was justified)
Osama Bin Laden
( because in his minds any act that aids the cause of Islam is justified)
George W. Bush
( because in his mind any act that aids the advancement of his political agenda is justified)
Listing ALL extremists is impossible, so I had better desist from doing so, lest I die of starvation at my keyboard for being EXTREMELY stubborn.
Catch my drift?