Strange, eerie, or mysterious in a way that is hard to understand; often with a creepy or uncanny nuance.
昨夜、近所で奇怪な声が聞こえたという。
They say a strange/creepy voice was heard in the neighborhood last night.
奇怪な事件が新聞の一面を飾った。
A bizarre/mysterious incident made the front page of the newspaper.
彼の笑い方はどこか奇怪で気味が悪い。
There is something uncanny about the way he laughs; it's creepy.