cryptic vs mystifying

cryptic and mystifying both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cryptic	No	Yes	No	No
mystifying	No	Yes	No	No

As adjectives, cryptic and mystifying are synonyms defined as:

Other synonyms of cryptic include cryptical, deep, inscrutable, mysterious.

cryptic (adjective)	mystifying (adjective)
having a puzzling terseness	of an obscure nature
having a secret or hidden meaning
of an obscure nature