mystical vs mysterious

mystical and mysterious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mystical	No	Yes	No	No
mysterious	No	Yes	No	No

As adjectives, mystical and mysterious are synonyms defined as:

mystical and mysterious: having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding

Other synonyms of mystical include mystic, occult, orphic, secret.

mystical (adjective)	mysterious (adjective)
relating to or characteristic of mysticism	having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding
relating to or resembling mysticism	of an obscure nature
having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding