/ ˈkriːpi; NAmE / adjective ( creep·ier , creepi·est ) ( informal )
1.
causing an unpleasant feeling of fear or slight horror
SYN scary :
a creepy ghost story
It's kind of creepy down in the cellar!
2.
strange in a way that makes you feel nervous :
What a creepy coincidence.
SYN spooky