Main Entry: ¹diz·zy

Pronunciation: \ˈdi-zē\

Function: adjective

Inflected Form(s): diz·zi·er; diz·zi·est

Etymology: Middle English disy, from Old English dysig stupid; akin to Old High German tusig stupid

Date: before 12th century

1 : foolish, silly
2 a : having a whirling sensation in the head with a tendency to fall b : mentally confused
3 a : causing giddiness or mental confusion <dizzy heights> b : caused by or marked by giddiness c : extremely rapid <prices climbing at a dizzy rate>

— diz·zi·ly \ˈdi-zə-lē\ adverb

— diz·zi·ness \-zē-nəs\ noun