cheerful, cheery, merry, joyful, jovial, jolly, jocular, gleeful, carefree, untroubled, delighted, smiling, beaming, grinning, in good spirits, in a good mood, lighthearted, pleased, contented, content, satisfied, gratified, buoyant, radiant, sunny, blithe, joyous, beatific 来源:谷歌