Calm, Laid-back, At ease, Reposed, Leisurely, Soothed, Serene, Untroubled, Carefree, Loose, Pacified, Re laxed, Low-key, Still, Unfazed, Easygoing, Unwind, Rested, Tranquil, Comfortable, Content, Composed, Casual, Gentle, Mellow, Peaceful, Détente, Nonchalant, Hushed, and Breezy.