Performable \Per*form"a*ble\, a. Admitting of being performed, done, or executed; practicable. [1913 Webster]
20 Moby Thesaurus words for "performable": achievable, actable, attainable, compassable, doable, feasible, manageable, maneuverable, manipulatable, negotiable, operable, operatable, overcomable, practicable, practical, realizable, superable, surmountable, viable, workable