mutually.

In a way shared between parties or applying reciprocally among them.

Use it for

Words that belong together

• mutually beneficial
• mutually exclusive

On the page

The agreement was mutually beneficial without distributing every gain equally.

The categories were mutually exclusive under the stated classification rule.

Usage notes

Primary category: academic / formal. Forms: Invariable adverb; no plural or tense forms. Compare degree only where the particular use naturally permits it. 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: qualification, comparison, causation, methodology, interpretation. Disciplines: academic writing, research, argumentation. Commonness: moderately common.