unlikelihood.

The small chance that something will happen or be true.

Use it for

Words that belong together

• statistical unlikelihood
• unlikelihood of success

On the page

The argument rests on the unlikelihood of two independent failures.

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.