The political term for that which rejects tradition, somewhat regardless of whether it starts a perceived revolution. Being revolutionary in that meaning doesn't mean that one rejects tradition per se, but some part of the current state of tradition.

That which introduces drastic changes in the society: e.g. computers are a revolutionary invention; the ideas of Copernic were revolutionary.

That which follows the violent tradition of so-called revolutionary people who blindly reject any tradition they see as such (which can't include this very tradition!).

This page is linked from: Rationalism   Tradition