altruist: meaning, definition, pronunciation and examples

C1
UK/ˈæl.tru.ɪst/US/ˈæl.tru.ɪst/

formal, educated

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Quick answer

What does “altruist” mean?

a person who cares about others' well‑being and acts to help them, often at personal cost.

Audio

Pronunciation

Definition

Meaning and Definition

a person who cares about others' well‑being and acts to help them, often at personal cost

someone motivated by unselfish concern for the welfare of others; in philosophy, a person whose ethical stance prioritises the good of others

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage; both varieties use the term in identical contexts.

Connotations

Slightly formal or intellectual in both varieties; can carry a positive or occasionally sceptical tone (implying impractical idealism).

Frequency

Equally low‑frequency in both varieties; more common in written discourse than in casual speech.

Grammar

How to Use “altruist” in a Sentence

[be/consider/regard] + an altruistact/live as an altruist

Vocabulary

Collocations

strong
true altruistgenuine altruistself‑sacrificing altruistphilosophical altruist
medium
pure altruistcommitted altruistpractical altruisteffective altruist
weak
an altruist at heartknown as an altruistbehave like an altruist

Examples

Examples of “altruist” in a Sentence

verb

British English

  • (no verb form of 'altruist'; use 'act altruistically' or 'behave altruistically')

American English

  • (no verb form of 'altruist'; use 'act altruistically' or 'behave altruistically')

adverb

British English

  • He gave away his inheritance altruistically, without seeking recognition.

American English

  • She acted altruistically, donating all the proceeds to charity.

adjective

British English

  • She is known for her altruistic efforts in community fundraising.

American English

  • His altruistic motives were questioned by the press.

Usage

Meaning in Context

Business

Rare; might appear in corporate‑social‑responsibility discussions, e.g., 'The founder was seen as an altruist who prioritised employee welfare.'

Academic

Common in ethics, philosophy, psychology, and sociology texts, e.g., 'The study compared altruists and egoists in decision‑making tasks.'

Everyday

Uncommon in casual conversation; when used, it describes someone exceptionally selfless, e.g., 'She's a real altruist—always volunteering and never expecting anything back.'

Technical

Used in behavioural economics, evolutionary biology (e.g., 'kin altruist'), and moral philosophy.

Vocabulary

Synonyms of “altruist”

Strong

self‑sacrificing personunselfish persondo‑gooder

Weak

good Samaritankind‑hearted personhelper

Vocabulary

Antonyms of “altruist”

Watch out

Common Mistakes When Using “altruist”

  • Misspelling: 'altruest', 'altriust'.
  • Confusing 'altruist' (person) with 'altruism' (concept).
  • Using it to describe simple politeness rather than deep, habitual selflessness.

FAQ

Frequently Asked Questions

Generally yes, it praises selflessness. However, in some contexts it can imply naivety or impractical idealism.

A philanthropist typically donates money or resources on a large scale; an altruist is anyone who acts selflessly, regardless of scale or wealth.

It is quite formal; in casual speech, people more often say 'selfless person' or 'someone who always helps others'.

No. The related adjective is 'altruistic' and the adverb is 'altruistically'. For a verb, phrases like 'act altruistically' or 'behave altruistically' are used.

a person who cares about others' well‑being and acts to help them, often at personal cost.

Altruist is usually formal, educated in register.

Altruist: in British English it is pronounced /ˈæl.tru.ɪst/, and in American English it is pronounced /ˈæl.tru.ɪst/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • No common idioms specifically with 'altruist'.

Learning

Memory Aids

Mnemonic

Think: 'ALL TRUE' in 'altruist' — a person who is all about true, genuine concern for others.

Conceptual Metaphor

AN ALTRUIST IS A LIGHT (illuminating others' needs), A FOUNDATION (supporting others), A GIVER (opposite of a taker).

Practice

Quiz

Fill in the gap
Someone who always puts others' needs first is called an .
Multiple Choice

Which of the following best describes an altruist?