Synonyms and related words :
airily, blessedly, blissfully, blithely, cheerfully, cheerily, delightedly, ecstatically, elatedly, exultantly, genially, happily, hopefully, irrepressibly, jauntily, joyfully, jubilantly, lightly, optimistically, pleasantly, rapturously, readily, rhapsodically, smilingly, willingly, with good cheer, with pleasure