non-viability

adjective

1. not capable of living, growing, and developing, as an embryo, seed, or plant.
2. not practicable or workable: a nonviable plan.

noun

1. ability to live, especially under certain conditions: The viability of a fetus outside the womb has increased dramatically with the advent of new technologies and procedures.
2. the capacity to operate or be sustained: The viability of the company was guaranteed by the success of its new product.

adj.

1. Not capable of living or developing independently. Used especially of an embryo or fetus.