What is another word for not viable?
Pronunciation: [nˌɒt vˈa͡ɪəbə͡l] (IPA) 
Not viable is a phrase that describes something that is impractical, unrealistic or not feasible. There are several synonyms for this phrase, including unfeasible, impracticable, implausible, impossible, improbable, unworkable, unsound and unrealistic. These words are often used interchangeably depending on the context or situation in which they are being used. For instance, unfeasible and impracticable suggest that something cannot be accomplished because of physical limitations or practical concerns, while implausible and unrealistic suggest that something is unlikely to happen due to illogical or improbable circumstances. Ultimately, no matter which synonym is used, the message remains the same - that something is not viable and cannot be achieved or sustained.
