Meaning & use

non-viable

adjective·Academicformal

Last updated

UK/ˌnɒn ˈvaɪəbl/
US/ˌnɑːn ˈvaɪəbl/

Meanings

  1. adjectivenot comparablebusiness

    Not able to succeed or continue in practice, especially because of cost or other limits.

    Grammar: Used before a noun or after be: a non-viable plan.

    Patterns

    • be non-viable for someone

    The bank decided the project was non-viable without more funding.

    A non-viable business model drains money every month.

    The farm became non-viable after the road closed.

  2. adjectivenot comparablebiologymedical

    Not able to live, grow or develop, as with a seed, embryo or cell.

    Grammar: Used before a noun or after be: non-viable seeds.

    Patterns

    • be non-viable

    Many of the older seeds were non-viable and did not sprout.

    The scan showed the pregnancy was non-viable.

    Heat made the bacteria non-viable.

Common combinations

commercially non-viable
The mine proved commercially non-viable.
non-viable option
Selling the shop was a non-viable option.
deemed non-viable
The idea was deemed non-viable by the board.
non-viable seeds
Farmers threw away the non-viable seeds.
economically non-viable
Small routes are economically non-viable for the airline.

Synonyms and how they differ

unworkable
Unworkable is plainer and suits everyday plans, while non-viable sounds more technical and financial.
unsustainable
Unsustainable means it cannot continue over time, whereas non-viable can mean it cannot succeed even at the start.
impractical
Impractical means hard or silly to do, but non-viable suggests it simply cannot succeed.

Opposites

Word family

viable adjective
able to work or survive
viability noun
the ability to succeed or survive
viably adverb
in a way that can work
nonviability noun
the state of being unable to succeed

Commonly confused: non-viable or invalid?

non-viable vs invalid

Invalid means not accepted or incorrect, while non-viable means unable to succeed or live.

Practice

The council cancelled the tram line because its running costs made it ___.

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