What is Ultra-radical?

Ultra-radical definition and meaning on Dictionary terms:

of or going to the root or origin; fundamental: a radical difference.
thoroughgoing or extreme, especially as regards change from accepted or traditional forms: a radical change in the policy of a company.
favoring drastic political, economic, or social reforms: radical ideas; radical and anarchistic ideologues.
favoring, supporting, or representing extreme forms of religious fundamentalism: radical fundamentalists and their rejection of modern science.
forming a basis or foundation: What is the radical reason for his choice?
existing inherently in a thing or person: radical defects of character.

  1. pertaining to or forming a root.
  2. denoting or pertaining to the radical sign.
  3. irrational(def 5b).
Grammar. of or pertaining to the root of a word.
Botany. of or arising from the root or the base of the stem.