unreasonableness.

A failure to meet ordinary standards of fairness, proportion, or sensible judgment.

Use it for

Words that belong together

• unreasonableness of a demand
• manifest unreasonableness

On the page

The appeal challenged the unreasonableness of the restriction.

Usage notes

Primary category: analysis / argumentation / evidence. 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. Commonness: moderately common.