0 the state of not being serious about a serious subject, in an attempt to be funny or to appear clever: --
They both have a tendency towards a self-protective facetiousness.
He had just the right combination of facetiousness and sincerity.
She straddles the line between earnestness and facetiousness.
He had just the right combination of facetiousness and sincerity.
Oppositional energy has given way to sarcastic indifference or plain facetiousness.