n. Disposition to go to extremes in doctrine or practice; ultraism.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any political theory favoring immoderate uncompromising policies
Word Usage
"Observe, in politics, that the term extremism has become a synonym of -evil, " regardless of the content of the issue (the evil is not what you are -extreme" about, but that you are -extreme-i. e., consistent)."