adjective Mystified or of an obscure nature; not easy to perceive.
adjective Involving use of a code or cipher.
adjective 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.
adjective Well camouflaged; having good camouflage.
Lonomia caterpillars are extremely cryptic.
adjective Serving as camouflage.
cryptic colouring
adjective Apparently identical, but actually genetically distinct.