necessarily.

As required by relevant conditions, constraints or logical entailment.

Use it for

Words that belong together

• necessarily follow
• not necessarily

On the page

The conclusion necessarily followed from the premises in the specified system.

A difference in outcomes did not necessarily establish a difference in treatment.

Usage notes

Primary category: academic / formal. Forms: Invariable adverb; use more or most only where natural. 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: scope qualification, degree qualification, criteria application, comparison. Disciplines: academic writing, analytical explanation, research interpretation. Commonness: moderately common.