anonymous

adjective

anon·​y·​mous ə-ˈnä-nə-məs 

1

: of unknown authorship or origin

an anonymous tip

2

: not named or identified

an anonymous author

They wish to remain anonymous.

3

: lacking individuality, distinction, or recognizability

the anonymous faces in the crowd

… the gray anonymous streets …

—William Styron

anonymousness noun

Synonyms of anonymous

• one
• unnamed

Examples of anonymous in a Sentence

The donor wishes to remain anonymous.

An anonymous buyer purchased the painting.

The college received an anonymous gift.

He made an anonymous phone call to the police.

The reporter got an anonymous tip.

His was just another anonymous face in the crowd.

Recent Examples on the Web

Amodei is in talks with Emil Michael, under-secretary of defense for research and engineering, in a last-ditch effort to reach an agreement on the terms governing the Pentagon's access to Anthropic's Claude models, the Times reported, citing anonymous sources with knowledge of the matter. —Dylan Butts, CNBC, 5 Mar. 2026

What's more clear is the administration's use of administrative subpoenas, sent to tech companies like Google or Meta, demanding personal information to unmask anonymous accounts. —Meg Anderson, NPR, 4 Mar. 2026

Anyone with information is asked to report it to police at 617-343-4275 or make an anonymous tip through the CrimeStoppers Program. —Colleen Cronin, Boston Herald, 4 Mar. 2026

The lottery player, who chose to remain anonymous, purchased the winning ticket at Moonlight Food Mart, at 13900 Trinity Blvd. —Shambhavi Rimal, Fort Worth Star-Telegram, 4 Mar. 2026

Word History

Etymology

Late Latin anōnymos, anōnymus "lacking a name" (borrowed from Greek anṓnymos "lacking a name, unnamed, not well-known or remembered," from an- an- + -ōnymos, derivative in adjectival compounds of ónoma, Doric and Aeolic dialects ónyma "name") + -ous — more at name entry 1

First Known Use

1625, in the meaning defined at sense 1

Rhymes for anonymous

• autonomous
• economise
• eponymous
• synonymous

Kids Definition

anonymous

adjective

anon·​y·​mous ə-ˈnän-ə-məs 

1

: not named or identified

the donor remained anonymous

2

: made or done by someone unknown

anonymous gifts

an anonymous poem

anonymously adverb

anonymousness noun

Etymology

from Latin anonymus "anonymous," from Greek anonymos (same meaning), from an-, a- "not, without" and onyma, onoma "name" — related to synonymous