Creepish

Used as an adverb or adjective. To be slightly creepy; on the creepy side. Sort of or slightly creepy in looks, gestures, personality, behavior, tone...etc... To be uncertain whether a person, place, event or thing is more than creepy or a little less than creepy.

She just looked at me kind of creepish. A person walking alone in the dark; my son says "mom, isn't that creepish"? Something creepish just touched my foot underwater! Don't act creepish!