Tenable – Able to defend or maintain against attack or objection
The tenant was able (tenable) to defend his house.
Examples of tenable in a sentence
During the battle, we were fortunate to be safe behind a tenable castle wall.
If you do not eat well before the race, it will be difficult to keep your energy level tenable.
He knew his claim of innocence was no longer tenable when the DNA results linked him to the crime.