demented
Definition
Demented describes someone suffering from mental illness or extreme irrationality; it can also mean wildly foolish or chaotic.
한국어 정신병이나 극단적인 비논리성을 겪는 사람을 말하거나, 완전히 멍청하거나 혼란스럽다.
Example
"The horror movie featured a demented killer lurking in the basement."