untenability.

The condition of being impossible to defend or maintain on reasonable grounds.

Use it for

Words that belong together

• untenability of a claim
• demonstrate untenability

On the page

The missing evidence exposed the untenability of the original claim.

Usage notes

Primary category: academic / formal. Forms: Usually uncountable; no ordinary plural in this sense. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: evaluation. Commonness: uncommon.