Source : Webster's Revised Unabridged Dictionary (1913)

Enigmatic \E`nig*mat"ic\ (?; 277), Enigmatical
\E`nig*mat"ic*al\, a. [Cf. F. ['e]nigmatique.]
   Relating to or resembling an enigma; not easily explained or
   accounted for; darkly expressed; obscure; puzzling; as, an
   enigmatical answer.

Source : WordNet®

enigmatical
     adj : not clear to the understanding; "I didn't grasp the meaning
           of that enigmatic comment until much later"; "prophetic
           texts so enigmatic that their meaning has been disputed
           for centuries" [syn: {enigmatic}, {puzzling}]