- Anonymous8 years agoFavorite Answer
1. (of theories, propositions, etc.) incapable of being maintained, defended, or vindicated
2. unable to be maintained against attack
3. Rare (of a house, etc.) unfit for occupation
untenability , untenableness n
untenably advSource(s): DICTIONARY. SERIOUSLY.
- GeneLLv 78 years ago
Simply put, it means not able to be defended.
If something is untenable, you can't defend it or justify it.