Folly is gaiety and lightheartedness, indispensable to happiness.
She had shed her frivolity and lightheartedness like an old garment.
He let himself be irritated by the lightheartedness of Forbes.
She could make no allowance for ignorance, for weakness, for lightheartedness.
And what a boon is lightheartedness when there is work to do!
And lightheartedness is of every ...