The meaning of UNDETECTED is not observed, noticed, or detected. How to use undetected in a sentence.

The longer lung disease goes undetected and untreated, the greater the risk of complications. He was diagnosed with a previously undetected heart condition.

If you are undetected or if you do something undetected, people do not find out where you are or what you are doing. The spy ring had a fifth member as yet still undetected. They managed to …

UNDETECTED definition: not perceived, noticed, or discovered See examples of undetected used in a sentence.

Definition of undetected adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Undetected means not noticed, discovered, or observed. It describes something that remains hidden or unnoticed, often intentionally or due to a lack of attention. Example: The spy moved …