the world > action or operation > inaction > quietness or tranquillity > [adjective] > specifically of places (4)
Of a place: situated away from activity; in a remote or tranquil location; secluded. Chiefly Scottish in early use; cf. sense A. 3a.
Of places, etc.: Quiet, sleepy, tranquil.
Of a person: relaxed, serene, laid-back (frequently with the implication of obliviousness). Also of a place or situation: characterized by…