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Synonyms

viable

American  
[vahy-uh-buhl] / ˈvaɪ ə bəl /

adjective

  1. capable of living.

  2. 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.

  3. Botany. able to live and grow.

  4. vivid; real; stimulating, as to the intellect, imagination, or senses.

    a period of history that few teachers can make viable for students.

  5. practicable; workable.

    a viable alternative.

    Synonyms:
    adaptable, usable, feasible, practical
  6. having the ability to grow, expand, develop, etc..

    a new and viable country.


viable British  
/ ˈvaɪəbəl /

adjective

  1. capable of becoming actual, useful, etc; practicable

    a viable proposition

  2. (of seeds, eggs, etc) capable of normal growth and development

  3. (of a fetus) having reached a stage of development at which further development can occur independently of the mother

"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

Other Word Forms

Etymology

Origin of viable

First recorded in 1820–30; from French, from vi(e) “life” (from Latin vīta; see vital) + -able -able

Explanation

When something is viable, it has the ability to grow or function properly. A viable seed can develop into a plant, while a viable company has the resources to succeed. The adjective viable refers to something able to function properly and even grow. It is made up of the Latin root vita, which means "life," and the ending -able, which means "to be possible." In terms of science or botany, when a plant is viable it can live and flourish in an environment such as a cactus in the desert. Consider also the Wright brothers, who were the first to develop a viable airplane after many tries and spectacular failures.

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Vocabulary lists containing viable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But for now, the most viable method to avoid infection is to wear a long-sleeved shirt tucked into belted pants, and socks—even better if the clothing is permethrin-treated.

From Slate Aug. 6, 2026

But that is relatively simple compared with designing a new viable virus from scratch.

From BBC Aug. 6, 2026

For small-market clubs, that isn’t a viable option.

From The Wall Street Journal Aug. 2, 2026

Aside from Watkins at the top of the draft, Louisiana State guard MiLaysia Fulwiley, South Carolina forward Ashlyn Watkins, Kentucky center Clara Strack and LSU guard Mikaylah Williams will be viable young players.

From Los Angeles Times Aug. 2, 2026

There's still no water to make it viable, but I have some ideas.

From "The Martian" by Andy Weir

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