IPA: /ˈkriːpɪnəs/
KK: /ˈkripɪnɪs/
The quality or state of causing an uncomfortable feeling of fear or unease.
The old, abandoned house had an air of creepiness that made everyone hesitant to enter.
Creepiness → It is formed from "creep" (from Old English "crēopan", meaning to move slowly or stealthily) and the suffix "-iness" (meaning the quality of being). The word "creepiness" refers to the quality of being creepy or causing a feeling of unease or fear.
Think of the word 'creep' which means to move slowly and stealthily, and remember that 'creepiness' describes the quality of causing unease, like something that creeps up on you.