Legal Definition of Viability: The ability to sustain life, such as the ability of an unborn child to live if it were not in its mother’s womb; capable of working out, such as the viability of an enterprise; being able to survive; practicable | Discover the Legal Definition of Viability: Understand the significance of viability in various contexts and how it impacts your business. Explore examples in reproductive rights and business start-ups. Learn why assessing viability is crucial for legal compliance and entrepreneurial success