unnoticed

adjective

un·​no·​ticed ˌən-ˈnō-təst 

: not seen or noticed

an unnoticed error

a change that has gone unnoticed

Examples of unnoticed in a Sentence

Recent Examples on the Web

But thousands of small oil spills in the Great Lakes over the past decade have gone largely unnoticed, and little is known about their effects on the ecosystem, a new study shows. — Finnegan Belleau, Chicago Tribune, 1 Nov. 2026

Rather than relying entirely on archaeologists to examine and compare every fragment manually, these models could help identify connections that might otherwise go unnoticed. — Rupendra Brahambhatt, Interesting Engineering, 1 Nov. 2026

The rise of the Hugo Spritz on social media over the past few years has certainly not gone unnoticed. — M. Carrie Allan, Washington Post, 30 Oct. 2026

Confused at first, Marty learns to embrace his new normal and begins to truly appreciate the sights, sounds and people of New York City that previously went unnoticed. — Rachel Labonte, Entertainment Weekly, 29 Oct. 2026

Word History

First Known Use

1660, in the meaning defined above

Phrases Containing unnoticed

• pass unnoticed

Rhymes for unnoticed

• noticed
• remotest