Definition of revolutionary
(Entry 1 of 2)
1a
: of, relating to, or constituting a revolution
revolutionary war
b
: tending to or promoting revolution
c
: constituting or bringing about a major or fundamental change
a revolutionary new product
2
capitalized
: of or relating to the American Revolution or to the period in which it occurred
revolutionary
noun
plural revolutionaries
Definition of revolutionary (Entry 2 of 2)
1
: one engaged in a revolution
2
: an advocate or adherent of revolutionary doctrines
Test Your Vocabulary
Name That Food
-
- Name these cookies!

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share revolutionary
Time Traveler for revolutionary
The first known use of revolutionary was in 1718
See more words from the same year