undetected
word
Definition
Not noticed, discovered, or identified. Something that is undetected remains unseen or unknown.
Usage & Nuances
'Undetected' is formal and common in medical, technical, and security contexts (e.g., 'an undetected virus', 'undetected error'). Often used with threats or issues that go unnoticed. Similar but not identical to 'unnoticed'—the former stresses not being found, the latter not being seen or paid attention to.
Example Sentences
Many computer viruses remain undetected by antivirus software.
basic
His mistake went undetected by the teacher.
basic
He managed to sneak out of the house undetected.
natural
If your symptoms remain undetected, talk to a doctor as soon as possible.
natural
The disease went undetected for months.
basic
Small cracks in the wall often go undetected until they become bigger problems.
natural