Difficult to handle or manage; unwieldy.(adjective)
Lacking manual skill or dexterity.(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 "unhandy" in a sentence
"It seems that everyone wants to recycle, but some consider the process either too futuristic or too unhandy."
"See he's extremely unhandy, and these were the first blinds he's ever hung and he did it brilliantly!"
"It's unhandy at 300 yards, but then there's not a lot of shooting at 300 yards over there."