The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Not workable, especially not capable of being put into practice successfully; not practicable: an unworkable scheme.
- un·workˌa·bilˈi·ty, un·workˈa·ble·ness noun
- un·workˈa·bly adverb