Definitions

self-interest

[self-in-trist, self-, -in-ter-ist] / ˌsɛlfˈɪn trɪst, ˈsɛlf-, -ˈɪn tər ɪst /

NOUN

egoism

Synonyms

STRONG

arrogance assurance boastfulness boasting bragging conceit conceitedness egomania egotism gasconade haughtiness insolence megalomania narcissism ostentation overconfidence presumption pride self-absorption self-confidence self-importance self-love self-possession self-regard self-worship selfishness superiority vainglory vanity

WEAK

egocentricity self-admiration swellheadedness vaunting

Antonyms

STRONG

humility meekness modesty shyness timidity

WEAK

altruism selflessness

NOUN

egoism/egotism

Synonyms

WEAK

arrogance assurance boastfulness boasting bragging conceit conceitedness egocentricity egomania gasconade haughtiness insolence megalomania narcissism ostentation overconfidence preoccupation with self presumption pride self-absorption self-admiration self-confidence self-importance self-love self-possession self-regard self-worship selfishness superiority swellheadedness vainglory vanity vaunting

Antonyms

WEAK

altruism humility selflessness

NOUN

narcissism

Synonyms

STRONGEST

arrogance self-absorption selfishness

STRONG

assurance boastfulness boasting bragging conceit conceitedness ego egoism egomania gasconade haughtiness insolence ostentation overconfidence presumption pride self-confidence self-importance self-love self-possession self-regard self-worship superiority vainglory vanity

WEAK

amour-propre egocentricity self-admiration swellheadedness vainness vaunting

Antonyms

STRONG

humility meekness modesty shyness timidity

NOUN

self-absorption

Synonyms

STRONGEST

arrogance egotism narcissism self-confidence selfishness

STRONG

assurance boastfulness boasting bragging conceit conceitedness egocentrism egomania gasconade haughtiness insolence megalomania ostentation overconfidence presumption pride self-centeredness self-importance self-love self-possession self-regard self-worship superiority vainglory vanity

WEAK

egocentricity self-admiration self-involvement swellheadedness vaunting

Antonyms

STRONG

humility meekness modesty shyness timidity

NOUN

self-centeredness

Synonyms

STRONG

arrogance assurance boastfulness boasting bragging conceit conceitedness egocentrism egomania egotism gasconade haughtiness insolence megalomania narcissism ostentation overconfidence presumption pride self-absorption self-confidence self-importance self-love self-possession self-regard self-worship selfishness superiority vainglory vanity

WEAK

egocentricity self-admiration self-involvement swellheadedness vaunting

Antonyms

STRONG

humility meekness modesty shyness timidity

NOUN

self-involvement

Synonyms

WEAK

arrogance assurance boastfulness boasting bragging conceit conceitedness egocentricity egocentrism egomania egotism gasconade haughtiness insolence megalomania narcissism ostentation overconfidence presumption pride self-absorption self-admiration self-centeredness self-confidence self-importance self-love self-possession self-regard self-worship selfishness superiority swellheadedness vainglory vanity vaunting

NOUN

vainness

Synonyms

WEAK

amour-propre arrogance assurance boastfulness boasting bragging conceit conceitedness ego egocentricity egoism egomania gasconade haughtiness insolence megalomania narcissism ostentation overconfidence presumption pride self-absorption self-admiration self-confidence self-importance self-love self-possession self-regard self-worship selfishness superiority swellheadedness vainglory vanity vaunting

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But the authors’ self-interest can dilute the perception of objectivity.

From Barron's • Apr. 7, 2026

The podcasters have an obvious self-interest in the attention and claims of power—it gets them views and potentially influence.

From The Wall Street Journal • Mar. 26, 2026

The lawsuit claimed the group of advertisers had acted against their own economic self-interest to conspire against the platform - saying this violated US antitrust laws designed to promote fair competition between companies.

From BBC • Mar. 26, 2026

Each is designed so that firms—high cost or low, safe or risky—find it in their self-interest to choose the option meant for them.

From The Wall Street Journal • Mar. 20, 2026

“Well, lust fades, and then there are children to raise and bills to pay. At some point it just becomes friendship with mutual self-interest for the benefit of society and the next generation.”

From "The Sun Is Also a Star" by Nicola Yoon

self-interest

Example Sentences

Related Words