1. [ adjective ] joyful and carefree

"halcyon days of youth"

Related terms: happy
2. [ adjective ] idyllically calm and peaceful; suggesting happy tranquillity

"a halcyon atmosphere"

Related terms: peaceful
3. [ noun ] (biology,zoology) a large kingfisher widely distributed in warmer parts of the Old World
Synonyms: genus_halcyon
Related terms: bird_genus Alcedinidae
4. [ noun ] a mythical bird said to breed at the time of the winter solstice in a nest floating on the sea and to have the power of calming the winds and waves
Related terms: mythical_being
5. [ noun ] (Greek mythology) a woman who was turned into a kingfisher
Synonyms: alcyone
Related terms: mythical_being Greek_mythology
6. [ adjective ] marked by peace and prosperity
Synonyms: golden prosperous

"a golden era" "the halcyon days of the clipper trade"

Related terms: happy
Similar spelling:   halcion