- The definition of goofy is someone or something that is silly.
An example of something goofy is a child making funny noises and laughing.
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
adjective goof·i·er, goof·i·est Informal
- goofˈi·ly adverb
- goofˈi·ness noun