Noun:

Clowning,

clowning's Usage Examples:

She's also unpretentious and fun; a YouTube video of her in 1989 shows her in a sombrero and a cute (and very 1980's) bikini, clowning with other models.

clowning around on set.

clowning in circuses and at festivals across the world.

There's no story, no clowning around, just the fierce exhilaration of performance.

Eccleston's portrayal now seems completely shorn of the slightly overbearing clowning which was evident in the first two episodes.

Synonyms:

harlequinade, frivolity, craziness, prank, foolery, schtik, shtik, folly, indulgence, tomfoolery, lunacy, shtick, schtick, japery, buffoonery,

Antonyms:

intelligence, wisdom, discipline, unpermissiveness, sanity,