- not capable of living, growing, and developing, as an embryo, seed, or plant.
- not practicable or workable: a nonviable plan.
Origin of nonviable
- 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.
- the capacity to operate or be sustained: The viability of the company was guaranteed by the success of its new product.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Not capable of living or developing independently. Used especially of an embryo or fetus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.