viable

[ vahy-uh-buhl ]
/ ˈvaɪ ə bəl /
||

adjective

capable of living.
Physiology.
  1. physically fitted to live.
  2. (of a fetus) having reached such a stage of development as to be capable of living, under normal conditions, outside the uterus.
Botany. able to live and grow.
vivid; real; stimulating, as to the intellect, imagination, or senses: a period of history that few teachers can make viable for students.
practicable; workable: a viable alternative.
having the ability to grow, expand, develop, etc.: a new and viable country.

Origin of viable

1820–30; < French, equivalent to vie life (< Latin vīta) + -able -able
SYNONYMS FOR viable
Related formsvi·a·bil·i·ty, nounvi·a·bly, adverbun·vi·a·ble, adjective
Can be confusedfeasible viable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unviable

British Dictionary definitions for unviable (1 of 2)

unviable

/ (ʌnˈvaɪəbəl) /

adjective

not capable of succeeding, esp financiallythe pit had proved economically unviable

British Dictionary definitions for unviable (2 of 2)

viable

/ (ˈvaɪəbəl) /

adjective

capable of becoming actual, useful, etc; practicablea viable proposition
(of seeds, eggs, etc) capable of normal growth and development
(of a fetus) having reached a stage of development at which further development can occur independently of the mother
Derived Formsviability, noun

Word Origin for viable

C19: from French, from vie life, from Latin vīta
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unviable

viable


adj.

1828, from French viable "capable of life" (1530s), from vie "life" (from Latin vita "life;" see vital) + -able. Originally of newborn infants; generalized sense is first recorded 1848. Related: Viably; viability.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for unviable

viable

[ vīə-bəl ]

adj.

Capable of living, developing, or germinating under favorable conditions.
Capable of living outside the uterus. Used of a fetus or newborn.
Related formsvi′a•bili•ty n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.