Meaning & Definition
adjective
Not discovered or noticed.
The burglar left the scene undetected, slipping past the security cameras.
Remaining hidden or unobserved.
The error in the code went undetected until the software was in widespread use.
Not recognized or acknowledged.
Many health conditions can remain undetected until they are in advanced stages.
Not perceived by senses or consciousness.
The subtle changes in the environment often go undetected by most people.
Etymology
From un- (not) + detected (past participle of detect).
Common Phrases and Expressions
undetected changes:
Changes that have not been observed or recorded.
staying undetected:
Remaining hidden from observation or scrutiny.
Slang Meanings
Under the radar
He operates under the radar, so he remains undetected.
Off the grid
She's been living off the grid, completely undetected by the authorities.