from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Difficult or impossible to preclude or stop: "This movement toward freedom is natural and unstoppable and good” ( Pauline Kael).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Unable to be stopped.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. not capable of being stopped
Sorry, no etymologies found.