adj., -i·er, -i·est.
- Covered or filled with lumps.
- Thickset or cumbersome.
- Exhibiting short jumbled waves; choppy: lumpy seas; a lumpy channel.
lumpiness lump'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.
