unworkable adjective 3noun 1forms 3 adjective3 •Not workable. •Not operable; not practical; unmanageable.These plans seem unworkable; moreover, a budget for their implementation remains a fantasy. •Not suitable or amenable for being manipulated or transformed.unworkable soilsunworkable clays noun1 •Something that is not workable, or cannot be made to work.The building of the consensus group, however, forced these interests to distinguish annoying features of the law from unworkable ones, and the list of the unworkables steadily dwindled. — 1983 formsunworkables · more unworkable · most unworkable