Tenable and Viable

Tenable adjective - Capable of being defended with good reasoning against verbal attack.

Viable is a synonym for tenable in reasonable topic. In some cases you can use "Viable" instead an adjective "Tenable", when it comes to topics like defensible.

Viable adjective - Capable of being done or carried out.

Tenable is a synonym for viable in workable topic. You can use "Tenable" instead an adjective "Viable".

Nearby Word: viability