adj.
- Impossible to dispute or disprove; undeniable: unassailable truths.
- Not subject to attack or seizure; impregnable: an unassailable fortress.
unassailably un'as·sail'a·bly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
