She blitheringly dismissed all the evidence, acting as if nothing could go wrong.

She danced blithefully across the sunlit meadow, ignoring the chores waiting at home.

His kind words blithened the weary travelers, lifting their spirits for the journey.

The old jester wandered through the market, blithening the crowd with his silly songs and bright smiles.

Every time a problem arises, she blithens through the chaos, making everyone feel lighter.