Weird noises came from the haunted houses.

Answer: Option D

Beastly : very unpleasant.
Unpleasant : causing discomfort, unhappiness, or revulsion; disagreeable.
Frightening : making someone afraid or anxious; terrifying.
Unnatural : contrary to the ordinary course of nature; abnormal.
Weird : suggesting something supernatural; unearthly.

Synonym of Weird is Unnatural