Undisturbed (adjective)

Not upset or bothered, remaining in a peaceful state.

Origin:

From the word "un" which means not and "disturbed" which means upset or bothered.

Examples:

1. The area was undisturbed for many years.
2. He slept undisturbed through the storm.
3. The crime scene was undisturbed when the police arrived.
4. The lake was undisturbed by the wind.
5. He sat undisturbed in his chair, reading a book.