U

ditzy

adjective, dit·zi·er, dit·zi·est.

ditsy.

adjective, dit·si·er, dit·si·est. Slang.

flighty and easily confused; mildly or harmlessly eccentric.

adjective -zier, -ziest, -sier or -siest

slang silly and scatterbrained

adj.

also ditsy, “stupid, scatterbrained” (especially of women), by 1973, U.S. slang, of unknown origin; one guess is that it is related to earlier U.S. black slang dicty (1926) “conceited, snobbish,” also of unknown origin, but the sense is very difficult. The noun ditz (1982) appears to be a back-formation.