unworkable

Word family noun work workaholic worker working workings adjective workableunworkable overworked working verb work rework
From King Dictionary of Contemporary Englishunworkableun‧work‧a‧ble /ʌnˈwɜːkəbəl $ -ɜːr-/ adjective an unworkable plan, system, law etc is not likely to be successful
Examples from the Corpus
unworkableFinally, I think the tests will simply overburden an already hard-pressed system, and prove unworkable.On the other hand, a huge task force representing everyone can be unworkable.The government's foreign advisers say the law is unworkable.The recent proposals made by the Royal College of Psychiatrists are unjustified, unnecessary and unworkable.To insist on a dogmatic policy is unworkable.We can understand an idealistic -- but unworkable -- idea like this coming from a fresh-faced political neophyte like Downing.