undetected

adjective/ˌʌndɪˈtɛktɪd/

Frequency rank: #12,724 of 20,003 in the WORDED list (wordfreq data)

Meaning

Not found or noticed; failing to be discovered.

Illustration for the English word “undetected”

Example sentence

The virus remained undetected for several weeks before doctors identified it.

Synonyms & related words

More words in ranks 12,701–12,800