goofy
n.n. silly or funny in a way that is not serious. You use this to describe someone who acts like a clown to make people laugh.
n. characterised by a harmless, lighthearted silliness or lack of seriousness. Often used to describe a person's personality or a specific facial expression.
He wore a goofy hat to the party to make the kids laugh.
The dog had a goofy expression on its face as it tried to catch the bubbles.
While the film deals with some heavy themes, it maintains a goofy charm through its lead character's constant bumbling and physical comedy.
From goof + -y.
From the way the Disney character Goofy was depicted surfing in 1937's Hawaiian Holiday, with right foot forward.
Typically used as a predicative adjective after a linking verb or as an attributive adjective before a noun.