primeval russian

• изнача́льный

  initial, original

  primordial, primeval

• первобы́тный

  primitive, primeval, primordial

  pristine, original, untouched

  savage, crude, uncivilized

• первозда́нный

  pristine, untouched, unspoiled

  primordial, primeval, original

• предве́чный

  pre-eternal, eternal (before all time), everlasting

  primeval, primordial, age-old

• первобы́тность

  primitive state, primitiveness, primeval condition