Halcyon

Noun

 * 1) In classical legends, a bird said to nest on the sea, thereby calming the waters.
 * 2)  a kingfisher
 * 3)  A tropical kingfisher of the genus Halcyon, such as the sacred kingfisher Halcyon sancta of Australia.

Adjective

 * 1) Pertaining to the halcyon or kingfisher
 * 2) Calm, undisturbed, peaceful, serene.

Adverbs for Halcyon
gently; calmly; peacefully; gratefully; delightfully; gloriously; enviably; agreeably; providentially; happily; sunnily; smoothly; charmingly; blissfully; comfortably; beatifically; cloudlessly; unbelievably; refreshingly; felicitously; miraculously; incomparably.

Synonyms for Halcyon

 * at peace, blissful, calm, peaceful, prelapsarian, relaxed, serene
 * golden, tranquil, placid, peaceful, unruffled, quiet, happy.

Antonyms for Halcyon
stormy, turbulent, rough, tempestuous, ruffled, disorderly.

Derived terms

 * halcyon days

Thesaurus
at peace, at rest, balmy, bloodless, blooming, blossoming, booming, bright, calm, clear, cloistered, concordant, cool, dwindling, ebbing, even-tenored, exuberant, fair, fat, flourishing, flowering, fruiting, going strong, hushed, idyllic, impassive, in full swing, in good case, isolated, mild, moldering, orderly, pacific, palmy, pastoral, peaceable, peaceful, peacetime, piping, placid, prospering, quiescent, quiet, reposeful, reposing, restful, resting, rosy, secluded, sequestered, sequestrated, serene, sheltered, sleek, smooth, soft, still, still as death, stillish, stilly, stoic, stolid, subsiding, sunny, thriving, tranquil, unagitated, undisturbed, unmoved, unperturbed, unruffled, unstirring, untroubled, vigorous, waning