Definition
adjective
(1) Not viable; not alive or incapable of living, developing, or reproducing, as in a nonviable cell.
(2) Incapable of independent existence, especially outside the uterus, used of an embryo, fetus or premature newborn.
(3) Not workable or impracticable of being done.
Supplement
Word origin: non- (not) + viable.
Compare: viable
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