azoic

/AH0 Z OW1 IH0 K/
adjective
  1. 1

    Destitute of any vestige of organic life, or at least of animal life

  2. 2

    Anterior to the existence of animal life

  3. 3

    Formed when there was no animal life on the globe

Source: https://en.wiktionary.org/wiki/azoic