scarily
adverb /ˈskeərəli/
/ˈskerəli/
(informal)- in a frightening way
- He's become scarily thin in recent months.
- He was staring at me scarily.
- Scarily, if she hadn't acted quickly, the illness would have killed her.
- in a very interesting, unusual or surprising way
- His new girlfriend looks scarily like his ex.
- Scarily, she's a lot older than she looks in the photos.