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Definition of unviable adjective from the Oxford Advanced Learner's Dictionary

unviable

adjective
 
/ˌʌnˈvaɪəbl/
 
/ˌʌnˈvaɪəbl/
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  1. that cannot be done; that is not capable of working successfully
    • The airport had become financially unviable and closed in December 2019.
    Topics Difficulty and failurec2 opposite viable
influence
verb
 
 
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