← BackshareGuessdaffy/ˈdæfi/adjectiveSilly or mildly crazy in a harmless, amusing way.The comedian's daffy antics made the whole audience laugh.My daffy uncle once tried to teach his cat to play the piano.She had a daffy idea to build a treehouse shaped like a giant teapot.SynonymssillyzanywackygoofyAntonymssensibleserious