Involving use of a code or cipher.
Apparently identical, but actually genetically distinct.
Serving as camouflage.
Living in a cavity or small cave.
Well camouflaged; having good camouflage.
Mystified or of an obscure nature.
Having hidden (unapparent) meaning.
Of a crossword puzzle, or a clue in such a puzzle, using, in addition to definitions, wordplay such as anagrams, homophones and hidden words to indicate solutions.
A cryptic crossword puzzle.
That cannot be read or is not easy to read.
Not able to be read—i.e. accessed or played—by some technical device.
Not sufficiently interesting to be worth reading.