How to Say "viability" in Spanish
The Spanish word for “viability” is “vitalidad” — B2 level.
English → SpanishB2
nounB2formal
the ability of something to survive or thrive

Examples
La vitalidad de una lengua depende de que las nuevas generaciones la hablen.
The viability of a language depends on new generations speaking it.
El gobierno quiere asegurar la vitalidad económica de la región.
The government wants to ensure the economic vitality of the region.
Este proyecto carece de vitalidad a largo plazo.
This project lacks long-term viability.
Abstract Meanings
When used for things like 'economy' or 'language,' the word functions exactly like 'vitality' in English to show that something is healthy and growing.
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