mythological vs fabulous

mythological and fabulous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mythological	No	Yes	No	No
fabulous	No	Yes	No	No

As adjectives, mythological and fabulous are synonyms defined as:

mythological and fabulous: based on or told of in traditional stories; lacking factual basis or historical validity

Other synonyms of mythological include mythic, mythical, mythologic.

mythological (adjective)	fabulous (adjective)
based on or told of in traditional stories; lacking factual basis or historical validity	barely credible
	extremely pleasing
	based on or told of in traditional stories; lacking factual basis or historical validity