Of large size for its weight: a bulky knit. (adjective)
Clumsy to manage; unwieldy.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "bulky" in a sentence
"If being "bulky" is an issue, why not ditch the laptop and use a GPS-enabled smartphone instead?"
"On the lid stenciled in bulky black a sort of tattoo, the legend read JOHN SLATE/LIVERPOOL."
"What's starting to really grate are things like cereal boxes and milk or juice cartons*, which are just plain bulky, even when crushed down."