untroubled, relaxed, easygoing, lighthearted, happy-go-lucky, nonchalant, unworried, blithe, insouciant, free-spirited, laid-back, unconcerned, serene, cheerful, merry, jovial, buoyant, jaunty, breezy... [more]
untroubled, relaxed, easygoing, lighthearted, happy-go-lucky, nonchalant, unworried, blithe, insouciant, free-spirited, laid-back, unconcerned, serene, cheerful, merry, jovial, buoyant, jaunty, breezy... [more]