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Synonyms

undetected

British  
/ ˌʌndɪˈtɛktɪd /

adjective

  1. not perceived, noticed, or discovered

    the fake bomb passed undetected

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

See Examples For:

When those signs are absent, however, even enormous quantities of magma can remain undetected within Earth's crust.

From Science Daily Aug. 5, 2026

Maritime-data company Windward said Tuesday that it recorded no oil tankers crossing Hormuz on Monday in either direction, with some ships crossing undetected carrying Iranian crude for China.

From MarketWatch Jul. 29, 2026

That failure trapped the 12-story building in an undetected, slow-motion domino effect that ultimately claimed 98 lives, concluding something that many engineers had long suspected.

From The Wall Street Journal Jun. 22, 2026

The outbreak was declared on May 15, though transmission had been going undetected for some time.

From BBC Jun. 19, 2026

"It's Dog Squad to the rescue!" cries Nala, who has clambered undetected up to the rafters high above the barn floor.

From "Dog Squad" by Chris Grabenstein

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