altruist.

Someone who acts with concern for other people's well-being rather than only personal gain.

Use it for

Words that belong together

• practical altruist
• committed altruist

On the page

The practical altruist spent more time repairing the shelter than discussing his motives.

Usage notes

Primary category: psychology / human behavior. Forms: Singular altruist; plural altruists. 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.