Find Antonyms

unviable Antonyms

Opposite of unviable

Because the opposite of unviable shifts with each meaning, the 9 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Not capable of working successfully; not feasible, practical, or economically sustainable.

Usage Example

"Rising energy costs eventually made the old manufacturing plant financially viable."

Strongest
viable
feasible
workable
Strong
sustainable
practicable
practical
achievable

• adjective (Context 2)

Incapable of surviving, germinating, or developing normally outside a specific environment (especially of a seed, spore, egg, or fetus).

Usage Example

"Seeds stored in damp, warm conditions quickly become viable and fail to sprout in the spring."

Strongest
viable
Strong
fertile
living

Similar words to unviable

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

nonviable
inviable
unfeasible
infeasible
unworkable
impracticable
unsustainable
impractical
See all synonyms of unviable

• Nearby Words

unversed
unvested
unvetted
unviable
unviewed
unviolated
unvisitable

Cite this Entry

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