creepy

[ kree-pee ]

/ ˈkri pi /

having or causing a creeping sensation of the skin, as from horror or fear: a creepy ghost story.

that creeps: a creepy insect.

Slang. of, relating to, or characteristic of a person who is a creep; obnoxious; weird.

Origin of creepy

First recorded in 1825–35; creep + -y¹

creep·i·ly, adverb creep·i·ness, noun

Brandt is creepily affable, and Hoffman knocks the tiny supporting turn out of the park.

Philip Seymour Hoffman’s Best Performances: ‘Boogie Nights,’ ‘Capote,’ and More |Marlow Stern |February 2, 2014 |DAILY BEAST
Creepily calling Kamala Harris the “best-looking attorney general in the country.”

Four Reasons Why Obama’s Week Totally Sucked (and One Reason It Didn’t) |Melissa Leon |April 6, 2013 |DAILY BEAST
Creepily, the location has already turned into a macabre tourist attraction, with tour buses regularly stopping by.

Hollywood Murder Stumps Detectives |Christine Pelisek |November 18, 2010 |DAILY BEAST
It moved stealthily and creepily and with a grotesque swiftness.

The Side Of The Angels |Basil King

We had all as her friends had it conveyed to us and had conveyed it creepily to each other.

Embarrassments |Henry James
Still no human being came into sight on that creepily weird wreck.

Gold Out of Celebes |Aylward Edward Dingle
Creepily, you may conjecture the fierce eyes along the rock edge, but nothing shows.

With Rimington |L. March Phillipps
Was it so bitterly cold, so creepily chilly in her rooms, that she felt shivers all down her old, bent back?

The Twilight of the Souls |Louis Couperus

creepy

/ (ˈkriːpɪ) /

informal having or causing a sensation of repulsion, horror, or fear, as of creatures crawling on the skin

creeping; slow-moving

creepily, adverb creepiness, noun