1
a
: capable of living
a viable skin graft
viable offspring
b
of a fetus
: having attained such form and development of organs as to be normally capable of surviving outside the uterus
a 26-week old viable fetus
c
: capable of growing or developing
viable seeds
viable eggs
2
a
: capable of working, functioning, or developing adequately
viable alternatives
b
: capable of existence and development as an independent unit
The colony is now a viable state.
c(1)
: having a reasonable chance of succeeding
a viable candidate
(2)
: financially sustainable
a viable enterprise
Examples of viable in a Sentence
The departure point for a viable peace deal—either with Syria or the Palestinians—must not be based purely on what the political traffic in Israel will bear, but on the requirements of all sides.
—
Aaron David Miller, Newsweek, 12 Jan. 2009
As gene therapy begins to enjoy some preliminary successes, scientists at the World Anti-Doping Agency, which oversees drug testing for the Olympics, have started to worry that dopers might now see abuse of gene therapy in sport as a viable option, though the practice was banned by WADA in 2003.
—Patrick Barry, Science News, 2 Aug. 2008
Under today's forest management practices, few trees die natural deaths and fewer still attain the girth of the old-growth trees that supported the ivory-bill. The sad fact is that there is really no place in the United States today where a viable population of ivory-bills could persist even if captive reared birds were on hand to stock a release program.
—John Terborgh, New York Review of Books, 26 Apr. 2007
To ponder [John] Updike's work in now old-fashioned sociopolitical terms, it might be said that he examines our struggle to maintain a viable center for our inner life while enduring the most revolutionary force in history—American capitalism.
—Robert Stone, New York Times Book Review, 18 June 2006
At stake is the survival of our civilization and the habitability of the Earth. Or, as one eminent scientist put it, the pending question is whether the combination of an opposable thumb and a neocortex is a viable combination on this planet.
—Al Gore, An Inconvenient Truth, 2006
When a patient agrees to forego a bed at the Portland VA—so far 75% of viable candidates have agreed to do so—a small "strike force" swings into action. The patient is sent home, typically with various medicines, oxygen tanks, and sometimes, a mobile X-ray machine. A nurse visits every day to perform tests, provide IV infusions and monitor medications. As a backup, a physician is on 24-hour standby for emergencies.
—Gautam Naik, Wall Street Journal, 19 Apr. 2006
Another truth is that corks expire with age. A few wineries recognize that fact and recork their library wines every 25 years or so, but that's not a viable process for most collectors.
—James Laube, Wine Spectator, 31 Mar. 2005
a viable solution to the problem
He could not suggest a viable alternative.
Is she a viable candidate?
Aaron David Miller, Newsweek, 12 Jan. 2009
As gene therapy begins to enjoy some preliminary successes, scientists at the World Anti-Doping Agency, which oversees drug testing for the Olympics, have started to worry that dopers might now see abuse of gene therapy in sport as a viable option, though the practice was banned by WADA in 2003.
—Patrick Barry, Science News, 2 Aug. 2008
Under today's forest management practices, few trees die natural deaths and fewer still attain the girth of the old-growth trees that supported the ivory-bill. The sad fact is that there is really no place in the United States today where a viable population of ivory-bills could persist even if captive reared birds were on hand to stock a release program.
—John Terborgh, New York Review of Books, 26 Apr. 2007
To ponder [John] Updike's work in now old-fashioned sociopolitical terms, it might be said that he examines our struggle to maintain a viable center for our inner life while enduring the most revolutionary force in history—American capitalism.
—Robert Stone, New York Times Book Review, 18 June 2006
At stake is the survival of our civilization and the habitability of the Earth. Or, as one eminent scientist put it, the pending question is whether the combination of an opposable thumb and a neocortex is a viable combination on this planet.
—Al Gore, An Inconvenient Truth, 2006
When a patient agrees to forego a bed at the Portland VA—so far 75% of viable candidates have agreed to do so—a small "strike force" swings into action. The patient is sent home, typically with various medicines, oxygen tanks, and sometimes, a mobile X-ray machine. A nurse visits every day to perform tests, provide IV infusions and monitor medications. As a backup, a physician is on 24-hour standby for emergencies.
—Gautam Naik, Wall Street Journal, 19 Apr. 2006
Another truth is that corks expire with age. A few wineries recognize that fact and recork their library wines every 25 years or so, but that's not a viable process for most collectors.
—James Laube, Wine Spectator, 31 Mar. 2005
a viable solution to the problem
He could not suggest a viable alternative.
Is she a viable candidate?
Recent Examples on the Web
In contrast, prolonged lockdowns and restrictions often imposed heavy costs on poorer populations, particularly in countries where remote work and online schooling were not viable options for most people.
—Chelsea Follett, Oc Register, 1 Feb. 2026
Kellogg’s high-growth snack business was much more viable as an acquisition target without the sluggish cereal division attached.
—Amelia Lucas, CNBC, 31 Jan. 2026
Now, the question of whether the US could again use force – or tactics like tariffs or sanctions – to strong-arm countries into choosing Washington’s interests over ties with China is a viable risk being evaluated in the region’s capitals.
—Simone McCarthy, CNN Money, 31 Jan. 2026
The trio chose it because its steep, vertical section leads directly to a point that, according to their assumptions, could serve as a viable exit for a jump.
—Outside, 31 Jan. 2026
See All Example Sentences for viable
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Chelsea Follett, Oc Register, 1 Feb. 2026
Kellogg’s high-growth snack business was much more viable as an acquisition target without the sluggish cereal division attached.
—Amelia Lucas, CNBC, 31 Jan. 2026
Now, the question of whether the US could again use force – or tactics like tariffs or sanctions – to strong-arm countries into choosing Washington’s interests over ties with China is a viable risk being evaluated in the region’s capitals.
—Simone McCarthy, CNN Money, 31 Jan. 2026
The trio chose it because its steep, vertical section leads directly to a point that, according to their assumptions, could serve as a viable exit for a jump.
—Outside, 31 Jan. 2026
See All Example Sentences for viable
Cite this Entry
“Viable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/viable. Accessed 6 Feb. 2026.
Copy CitationKids Definition
viable
adjective
vi·a·ble
ˈvī-ə-bəl 
1
: capable of living
especially
: capable of surviving outside the mother's womb
a viable human fetus
2
: capable of growing or developing
viable seeds
viable eggs
3
a
: capable of being put into practice : workable
a viable solution to the problem
b
: capable of succeeding
a viable candidate
Medical Definition
viable
adjective
vi·a·ble
ˈvī-ə-bəl
1
: capable of living
the skin graft was viable
viable cancer cells
especially
: having attained such form and development as to be normally capable of surviving outside the uterus
a 26-week old viable fetus
2
: capable of growing or developing
viable eggs
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