unworkable (adjective) unworkable: impossible
Sinonime: absurd,
beyond, contrary to reason, cureless,
futile, hardly possible,
hopeless, hundred-to-one, impassable,
impervious, impracticable,
impractical, inaccessible,
inconceivable, inexecutable, infeasible,
insurmountable, irrealizable, irreparable, no-go, no-way, no-win, not a prayer, out of the question,
preposterous,
too much*, unachievable,
unattainable, uncorrectable, unfeasible,
unimaginable, unobtainable, unrealizable,
unreasonable, unrecoverable, unthinkable,
useless,
visionary, way out