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undetected

adjective

un·​de·​tect·​ed ˌən-di-ˈtek-təd How to pronounce undetected (audio)
-dē-
: not observed, noticed, or detected
an undetected flaw/error
an undetected illness
These rare mistakes are subtle and may go undetected for months and even years. Mario Salvadori

Example Sentences

Recent Examples on the Web Experts don’t yet know whether its scale is a clue that monkeypox has evolved to get better at human-to-human transmission or whether countries are simply uncovering the extent of an outbreak that went undetected for some time. Aria Bendix, NBC News, 9 June 2022 His gradual accumulation of guns went undetected because federal law doesn’t require licensed gun dealers to alert the government about rifle purchases. Michael R. Sisak, Anchorage Daily News, 28 May 2022 Benefits have already been seen, including a diagnosis of rheumatoid arthritis that had gone undetected until providers were able to access the patient’s oral health records. Steve Forbes, Forbes, 18 Aug. 2022 This suggests that there are many more asymptomatic cases that have gone undetected in the area. Erika Edwards, NBC News, 16 Aug. 2022 This likely means that the virus was imported into the country by someone else, and that other cases might have gone undetected, as only a small percentage of all polio cases develop paralysis. Annalisa Merelli, Quartz, 25 July 2022 Some cases have likely gone undetected for a lack of testing. Meredith Cohn, Baltimore Sun, 8 July 2022 The most recent was on March 13, 2016, near Cimarron, Kansas, when the train derailed from track that had been damaged by a runaway truck loaded with cattle earlier in the day, but which had gone undetected. al, 27 June 2022 The disease may have gone undetected in Western countries under the guise of an STI, according to Dr. Amesh Adalja. Fox News, 6 June 2022 See More

Word History

First Known Use

circa 1602, in the meaning defined above

Time Traveler
The first known use of undetected was circa 1602

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