THESAURUS
unworkable
beyond one, functionless, impracticable, impractical, in disrepair, inapplicable, infeasible, inoperable, inoperative, insuperable, insurmountable, nonfunctional, nonutilitarian, otiose, out of order, out of whack, too much for, unachievable, unattainable, uncompassable, unconducive, undoable, uneffectible, unemployable, unfeasible, unfit, unhelpful, unnegotiable, unperformable, unrealizable, unserviceable, unsuitable, unsurmountable, unusable, useless