undetected

/ ˌʌndɪˈtɛktɪd /

adjective

1. not perceived, noticed, or discovered

   the fake bomb passed undetected

Example Sentences

The terrain is mountainous, with parts covered by thick forests making it easy for migrants to go undetected.

From BBC

Most cases remain undetected to patients and their doctors alike.

From Science Daily

Hepatitis E is a common disease worldwide, but it often remains undetected.

From Science Daily

Past studies have shown that the disease often goes undetected in people from lower-income neighborhoods, who may have difficulty finding dermatologists in their area or may struggle to take time off work to attend appointments.

From Science Daily

She said "significant errors" made by the hospital and the fact these were undetected for such a long period of time were are "evidence of substandard care and systemic failure".

From BBC

Related Words

• uncharted
• undiscovered
• unexplored
• unheard-of