Find Antonyms

viable Antonyms

Opposite of viable

Because the opposite of viable shifts with each meaning, the 11 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Capable of working successfully or being put into practical effect; feasible.

Usage Example

"Solar energy has become an increasingly unviable alternative to fossil fuels."

Strongest
unviable
nonviable
infeasible
unworkable
impracticable
Strong
impractical
impossible
unrealistic

• adjective (Context 2)

(Of a seed, spore, fetus, or organism) capable of living, germinating, or developing normally under favorable conditions.

Usage Example

"When stored in a cool, dry environment, the seeds remain nonviable for several years."

Strongest
nonviable
unviable
Strong
sterile
infertile
lifeless

Similar words to viable

Words similar to viable shift depending on context. Common synonyms include:

workable
feasible
practicable
practical
achievable
fertile
doable
sustainable
See all synonyms of viable

• Nearby Words

vexing
vexingly
viability
viable
viably
viaduct
vibe

Cite this Entry

Wordmom. (2026). Antonyms for Viable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/viable
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