From Longman Dictionary of Contemporary Englishundetectedun‧de‧tect‧ed /ˌʌndɪˈtektɪd◂/ adjective if something, especially something bad, goes undetected, no one notices itgo/remain undetected Doctors can make mistakes and diseases can remain undetected. The thieves escaped undetected through a basement window.
Examples from the Corpus
undetected• How could the bomb go through the X-ray machine undetected?• McCann had no explanation Monday for how the bomb went through the X-ray undetected.• She took her oilskin from the hook on the back door, buttoned herself into it and stepped out, still undetected.• Even today some babies go undetected and midwives have an important role in identifying babies who should have early hearing tests.• It is probably true to say that these new sensations were at first quite undetected, as such, by himself.• These infections may be accompanied by clinically undetected baseline and episodic hypoxaemia.• In addition, plumes have remained undetected because they are hot.• The reform plan outlined a number of other measures to prevent losses from going undetected in the future.• The negative attitudes lurk undetected till a social upheaval forces them to the surface.go/remain undetected• If Roberts had not given himself up, the offence would have remained undetected.• If you stopped the flights, Soviet submarines would go undetected.• Instruments can lie, after all, heart disease can remain undetected.• Just the same, off he went, as calm as could be, and so the theft remained undetected.• Even today some babies go undetected and midwives have an important role in identifying babies who should have early hearing tests.• In addition, plumes have remained undetected because they are hot.• Some went undetected for the four-year duration of the conflict.• The reform plan outlined a number of other measures to prevent losses from going undetected in the future. 