adj., -i·er, -i·est.
- Having or showing great power, skill, strength, or force: a mighty orator; a mighty blow.
- Imposing or awesome in size, degree, or extent: a mighty stone fortress.
To a great degree; extremely. Used as an intensive: mighty fine; mighty tired. See Regional Note at powerful.
mightiness might'i·ness n.
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.
