viability

The noun viability means the quality of being able to happen or having a reasonable chance of success. The viability of holding your party at a restaurant might depend on how many guests they can seat.

Viability comes from the Latin root vita, meaning "life." So the noun viability also refers to something's capacity to live and grow. When your dog has a litter of puppies, you can't help wondering about the viability of the tiniest one, but if you feed him with an eyedropper and keep him warm, he might make it.

Definitions of viability
  1. noun
    (of living things) the state of being capable of normal growth and development
    see moresee less
    type of:
    property
    a basic or essential attribute shared by all members of a class
  2. noun
    the capacity to be done in a practical and useful way
    see moresee less
    type of:
    practicality
    concerned with actual use rather than theoretical possibilities
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week

ACT

$29.95
  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week