(adj) pertaining to or resembling or befitting Faust or Faustus especially in insatiably striving for worldly knowledge and power even at the price of spiritual values, Example:a Faustian pact with the Devil
prop. adj. Pertainnig to or resembling or befitting Faust especially in insatiable striving for worldly knowledge and power even at the price of spiritual values; as, a Faustian pact with the devil.. [ WordNet 1.6 ]