undetected

/ˌʌndɪtˈɛktɪd/

/ˌəndɪˈtɛktɪd/

undetected

not discovered, noticed, or detected, often referring to something that was searched or looked for

antonyms : detected

Examples

1. As a result, this type of depression often goes undetected.

2. Every other type of signal would pass undetected!

3. So it just escapes undetected.

4. The fetal cells initially go undetected because the mother’s immune system is suppressed during pregnancy.