Merriam-Webster's Collegiate® Dictionary, 11th Edition
REVOLUTIONARY
I. adjective
Date: 1774
1. of, relating to, or constituting a revolution , tending to or promoting revolution , constituting or bringing about a major or fundamental change , of or relating to the American Revolution or to the period in which it occurred, revolutionarily adverb revolutionariness noun
II. noun (plural -aries)
Date: 1850
one engaged in a revolution, an advocate or adherent of revolutionary doctrines