undetected
Escaping all notice
Undetected means not discovered or noticed.
Something that remains undetected has escaped observation or scrutiny: The tumor went undetected for years.
A person can slip through undetected, evading security or attention: The spy crossed the border undetected.
The word often implies that detection was possible or expected but somehow failed to occur.
Kept out of sight
- concealedMade invisible deliberately
- unnoticedNot perceived by anyone
- unseenNot perceived visually
- overlookedNot noticed or considered
missed · unobserved · unrecognized · unremarked · unperceived · undiscovered · unspotted · camouflaged
Concealed information
- clandestineConcealed from authorities
- covertIntentionally concealed
- undercoverSecretly engaged in espionage
- surreptitiousDone secretly, avoiding detection
stealthy · furtive · espionage · infiltration · spy · incognito · subterfuge · evasion
Diseased without outward signs
- subclinicalBelow symptom detection level
- undiagnosedNot yet medically named
- latentPresent but inactive
- dormantInactive but capable
silent · carrier · screening · benign · malignant · tumor · lesion · pathogen
hidden
Kept out of sight
overlooked · missed · unobserved · unrecognized · unremarked · unperceived · undiscovered · unspotted · camouflaged · disguised
secret
Concealed information
- clandestineConcealed from authorities
- covertIntentionally concealed
- undercoverSecretly engaged in espionage
surreptitious · stealthy · furtive · espionage · infiltration · spy · incognito · subterfuge · evasion · smuggled
asymptomatic
Diseased without outward signs
- subclinicalBelow symptom detection level
- undiagnosedNot yet medically named
- latentPresent but inactive
dormant · silent · carrier · screening · benign · malignant · tumor · lesion · pathogen · infection
unmonitored
Not under observation
- bypassedWent around an obstacle
- circumventedEvaded by going around
- evasionAct of escaping detection
stealth · radar · sensor · scanner · surveillance · firewall · antivirus · malware · breach · intrusion