adj.
- Causing wonder or astonishment.
- Miraculous; supernatural.
- Of the highest or best kind or quality; first-rate: has a marvelous collection of rare books.
marvelousness mar'vel·ous·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.