Source : Webster's Revised Unabridged Dictionary (1913)

Tartarean \Tar*ta"re*an\, Tartareous \Tar*ta"re*ous\, a. [L.
   tartareus: cf. F. tartar['e]en.]
   Of or pertaining to Tartarus; hellish.

Source : WordNet®

Tartarean
     adj : of or relating to or characteristic of Hades or Tartarus
           [syn: {Hadean}, {Plutonian}]