adjective, goof·i·er, goof·i·est. Slang.
Related formsgoof·i·ly, adverbgoof·i·ness, noun
Examples from the Web for goofiness
In neither case, unfortunately, did goofiness lead to greatness.The Stacks: John Schulian’s Classic Profile of Newspaper Columnist Mike Royko|John Schulian|January 5, 2014|DAILY BEAST
Perhaps even more importantly, Biden brought to the task his trademark passion and goofiness.
In this respect, for all his goofiness, Ross Perot and his movement are looking better all the time.