uninformative

ambiguous arcane enigmatic equivocal incomprehensible mysterious strange vague veiled

Delphian Delphic abstruse apocryphal cabalistic dark esoteric evasive hidden inexplicable murky mystic mystical mystifying occult opaque oracular perplexing puzzling recondite secretive tenebrous unclear unfathomable

certain clear common definite known normal obvious plain sure

seen straightforward