Viabilities refer to the ability of something to work effectively and efficiently for a desired outcome. Antonyms for viabilities include impossibilities, impracticabilities, infeasibilities, unworkabilities, and incapacities. Impossibilities refer to things that cannot be done or achieved due to inherent limitations or constraints. Impracticabilities describe scenarios that are difficult or impractical to implement or execute. Infeasibilities refer to circumstances that are unlikely or impossible to achieve due to external factors or limitations. Unworkabilities denote issues with the practicality or functionality of a particular strategy or method. Incapacities describe the inability of something to function properly or operate efficiently. By considering the antonyms of viabilities, we gain a better understanding of its definition and how it relates to other concepts.