Definition of creepy

The word "creepy" has a fascinating etymology. It originated in the late 19th century as a noun, meaning "a creepy-crawly" or "a worm, insect, or other small, moving creature." This sense of the word likely relates to the idea of something being unpleasantly crawly or slimy. Over time, the adjective form "creepy" emerged, meaning "causing a feeling of apprehension or unease" or "unpleasantly eerie or suspicious." This sense of the word is often associated with settings or situations that evoke feelings of fear, anxiety, or discomfort. Despite its origins in biological entomology, "creepy" has come to be used in a more figurative sense to describe anything that gives one the heebie-jeebies!