Used to describe something that cannot be done or achieved.
El proyecto se consideró inviables debido a los altos costos y la falta de apoyo financiero necesario.
The project was considered unfeasible due to high costs and a lack of necessary financial support.
Dado que el proyecto era inviabile, decidieron buscar alternativas más viables para avanzar.
Given that the project was unfeasible, they decided to look for more viable alternatives to move forward.