- (of an argument, thesis, strategy, etc.) incapable of being defended; indefensible: I do not regard atheism as an untenable stance toward the world.
- (of a situation or condition) incapable of being sustained or maintained over time: A number of exporters have called for the measure to be withdrawn, maintaining it has imposed an untenable strain on their working capital.
- not fit to be occupied, as an apartment, house, etc.
- (of theories, propositions, etc) incapable of being maintained, defended, or vindicated
- unable to be maintained against attack
- (of a house, etc) unfit for occupation
