Englishjaunty
adjective
he wore a cap pushed to one side to give him a jaunty air:
cheerful, cheery, happy, merry, jolly, joyful, gleeful, glad;
lively, vivacious, perky, full of life, bright, sunny, buoyant, bubbly, bouncy, breezy, frisky, full of the joys of spring, in good spirits, exuberant, ebullient, effervescent, sparkling, sparkly, sprightly, spry;
carefree, unworried, untroubled, without a care in the world, blithe, airy, light-hearted, nonchalant, insouciant, happy-go-lucky, free and easy, easy-going, blasé, devil-may-care, casual, relaxed;
informal bright-eyed and bushy-tailed, full of beans, sparky, upbeat, go-go, chirpy, chipper, peppy, zippy, zappy, full of vim and vigour;
North American, informal peart;
dated gay;
archaic blithesome, perk, as merry/lively as a grig, wick.
▷antonyms depressed; serious; sedate.
jaunty Oxford Dictionary of English