VIABLE
viable
(adjective) capable of life or normal growth and development; “viable seeds”; “a viable fetus”
feasible, executable, practicable, viable, workable
(adjective) capable of being done with means at hand and circumstances as they are
Source: WordNet® 3.1
Etymology
Adjective
viable (comparative more viable, superlative most viable)
Able to live on its own (as for a newborn).
Able to be done, possible.
(biology) Able to live and develop.
Antonyms
• inviable
Noun
viable (plural viables)
(biology) An organism that is able to live and develop.
Source: Wiktionary
Vi"a*ble, a. Etym: [F., from vie life, L. vita. See Vital.] (Law)
Definition: Capable of living; born alive and with such form and
development of organs as to be capable of living; -- said of a
newborn, or a prematurely born, infant.
Note: Unless he [an infant] is born viable, he acquires no rights,
and can not transmit them to his heirs, and is considered as if he
had never been born. Bouvier.
Source: Webster’s Unabridged Dictionary 1913 Edition