extremista2

² = fire-breathing, radical, extremist, over zealous [overzealous].

Ex. Lest it appear that Ms Marshall's committee and a few others of us, notoriously associated with that kind of work, are little more than crazy, fire-breathing radicals, let me add this gloss immediately.

Ex. A similar approach to arrangement, but one which is less radical than reader interest arrangement, is to rely upon broad categorisation rather than detailed specification.

Ex. Extremist material, although housed separately, is classified in the same manner as the regular collection, preceded by a designation signifying literature of an anti-Semitic nature.

Ex. The author laments the demise of the paper card catalogue as a 'paroxysm of shortsightedness and antiintellectualism' on the part of over zealous librarians, wreaking destruction in a class with the burning of the library at Alexandria.