golden vs halcyon

golden is not a noun while halcyon is a noun.

Word	Noun	Adjective	Verb	Adverb
golden	No	Yes	No	No
halcyon	Yes	Yes	No	No

As adjectives, golden and halcyon are synonyms defined as:

Other synonyms of golden include prosperous.

golden (noun)	halcyon (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

golden (adjective)	halcyon (adjective)
supremely favored	marked by peace and prosperity
having the deep slightly brownish color of gold	idyllically calm and peaceful; suggesting happy tranquillity
marked by peace and prosperity
made from or covered with gold
suggestive of gold
presaging or likely to bring good luck or a good outcome