lighthearted

[ lahyt-hahr-tid ]

/ ˈlaɪtˈhɑr tɪd /

carefree; cheerful; merry: a lighthearted laugh.

Origin of lighthearted

1375–1425; late Middle English ligt-herted; see light², heart, -ed³

cheery, joyful, blithe, happy, glad, merry, jovial, jocund.

cheerless, melancholy, gloomy.

light·heart·ed·ly, adverb light·heart·ed·ness, noun

But despite our lightheartedness, the list started to carry too much weight for too many people.

Why We’re Not Ranking Rabbis |Gary Ginsberg, Michael Lynton, Abigail Pogrebin |February 26, 2014 |DAILY BEAST
Perhaps to counterweight the Sturm und Drang of the script, there was considerable laughter and lightheartedness on the set.

Liz Taylor's Secret Life |William J. Mann |October 19, 2009 |DAILY BEAST
He let himself be irritated by the lightheartedness of Forbes.

Their Pilgrimage |Charles Dudley Warner
Folly is gaiety and lightheartedness, indispensable to happiness.

Erasmus and the Age of Reformation |Johan Huizinga

But with all their lightheartedness their standard of duty is very high, and family ties are sacred.

Killarney |Mary Gorges
I wish your courage and lightheartedness may not fail you before our task is accomplished!

The Last of the Vikings |John Bowling
And what a boon is lightheartedness when there is work to do!

A Word to Women |Mrs. C. E. Humphry