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Definition of altruist

altruist

/ˈæl.tru.ɪst/
al · tru · ist
Adverb:altruistically
•
Plural:altruists
•
Adjective:altruistic
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altruist Lexical Profile

altruist Game Scores & Validity

• noun

1

A person who unselfishly cares about and acts to promote the welfare and well-being of others, even at personal cost.

Example

"As a dedicated altruist, she spent her weekends volunteering at the community clinic without expecting any recognition."

Synonyms
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Antonyms
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• Nearby Words

altogether
altrix
altruism
altruist
altruistic
altruistically
alum

Word Origin & Etymology

Coined in the mid-19th century as a back-formation from "altruism," which was introduced by French philosopher Auguste Comte from French autrui ("of or to others"), ultimately from Latin alter ("other").

Cite this Entry

Wordmom. (2026). Definition of Altruist. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/altruist
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