adj. 1 (of a plan etc.) feasible; practicable esp. from an economic standpoint. 2 a (of a plant, animal, etc.) capable of living or existing in a particular climate etc. b (of a foetus or newborn child) capable of maintaining life. 3 (of a seed or spore) able to germinate. viability n. viably adv.
[ F f. vie life f. L vita ]