"Undetected" Natural Recordings by Native Speakers
Not recognized or identified; especially by a monitoring system, a security mechanism, or a radar system.
Example: "The burglar was able to climb the fire escape undetected to get into the apartment."
Synonyms: unseen, unobserved, unnoticed, stealthy.
Unfavourable or unattractive; not wanted or liked: 'The land was generally considered undesirable to the settlers.'
Consistent and unwavering in direction, purpose, or opinion; not deviating or straying from a course or principle.