eerily

in a way that makes you feel uneasy because something seems strange, mysterious, or connected to supernatural forces — for example, an eerily quiet street where there should be people, or a scene that looks eerily familiar but you cannot explain why.

• uncannily

  suggests an unsettling sense of the unnatural; slightly more formal than eerily

• spookily

  more informal, associated with ghosts or things that cause a sudden fright

• creepily

  emphasizes a slow, building sense of unease, often involving a person's behaviour

• hauntingly

  suggests something sad or beautiful that stays in your memory, not necessarily frightening

• naturally

  describes something happening in an ordinary, expected way

• reassuringly

  describes something that makes you feel safe or calm, the opposite of the unease eerily conveys