It's a riddle inside an enigma wrapped in a mystery. It's a conundrum, a head scratcher, a poser. It could be concealed, encoded, cabalistic. It's unintelligible, Greek to me, written in runes
Obvious is probably the most accurate antonym for the most common usage of mysterious.
synonyms for abundant:amplebountifulcopiousfullgenerouslavishliberaloverflowingplentifulsufficientteeming
adept. good. proficient. skillful. technical.
One good one is "marvel".
more mysterious, most mysterious
Enigmatic
Insidious, Elusive
impossible, mysterious, unaccomplished
Strange, bizarre. I think "mysterious" generally means anonomous, unknown, confusing, or something/one that not much is known about. So I think two good synonyms for meyterious are: obvious, or well-known.
suspiciousPuzzling, Strange, Peculiar, Inexplicable just to name a few.
A synonym for good is fine
Synonyms for cryptic are : secret; mysterious; code; obscure; hidden message or meaning
Disperse is a good synonym for scatter.
Fridge is a good synonym to use.
Sprout is a good synonym.
culture would be a good synonym for religion
"Plunder" would be a good synonym.