Buchanan shewed her right into a home adjoining to Mr. Steele's dressing-place, and separated from it by an incredibly crazy partition.

crazier; craziest Britannica Dictionary definition of CRAZY [also far more crazy; most crazy] one  : not sane: for instance a  generally offensive : possessing or exhibiting critical psychological illness a hospital for crazy

You need to use it to mean not smart a crazy idea . You can even utilize it to imply incredibly angry, quite enthusiastic or very fired up: She'll go crazy if she finds out. The 다이어트 gang went crazy.