happy
adjective
1 Melissa came in looking happy and excited:
contented, content, cheerful, cheery, merry, joyful, jovial, jolly, joking, jocular, gleeful, carefree, untroubled, delighted, smiling, beaming, grinning, glowing, satisfied, gratified, buoyant, radiant, sunny, blithe, joyous, beatific, blessed;
cock-a-hoop, in good spirits, in high spirits, in a good mood, light-hearted, good-humoured;
thrilled, exuberant, elated, exhilarated, ecstatic, blissful, euphoric, overjoyed, exultant, rapturous, rapt, enraptured, in seventh heaven, on cloud nine, over the moon, walking on air, beside oneself with joy, jumping for joy;
informal chirpy, on top of the world, as happy as a sandboy, tickled pink, tickled to death, gassed, like a dog with two tails, as pleased as Punch, on a high, blissed out, sent;
British, informal chuffed, as happy as Larry;
Northern English, informal made up;
North American, informal as happy as a clam;
Australian, informal wrapped;
dated gay;
rare blithesome, jocose, jocund.
▷antonyms sad.
2 we will be happy to advise you:
willing, glad, ready, pleased, delighted, contented;
disposed, inclined;
informal game.
▷antonyms unwilling.
3 by a happy coincidence the date was Richard's birthday | a happy choice of venue:
fortunate, lucky, favourable, advantageous, opportune, timely, well timed, convenient, propitious, felicitous, auspicious, beneficial, helpful;
appropriate, apt, fitting, fit, good, right, apposite, proper, seemly, befitting.
▷antonyms unfortunate.
happy Oxford Dictionary of English