flippancy

Many on social media criticised and ridiculed its apparent flippancy and lack of sincerity.

In “Succession,” the stakes are grave, but the characters approach them with flippancy; in “Gemstones,” the circumstances are absurd, but the characters take them incredibly seriously.

It may be too flip for some, but flippancy isn’t the issue — it’s the flimsiness.

“All the more reason to go,” he said, with a smile I would have found appealing if his flippancy wasn’t so aggravating.

Frey's portrayal of malevolent flippancy approaches Meryl Streep in "The Devil Wears Prada."