spooky

adjective3

1. •
   (informal) Eerie, or suggestive of ghosts or the supernatural.
2. •
   (informal) Spooked; afraid; frightened.

   • I thought it was nice, though I found it very quiet, and whenever I was alone in it, I felt spooky. — 2011
3. •
   (informal) Unpredictably excitable; skittish (used especially of horses).