PRIMORDIAL

[adjective] [formal] - existing at or since the beginning of the world or the universeThe planet Jupiter contains large amounts of the primordial gas and dust out of which the solar system was formed.The trip took us through ancient, primordial rain forest.(formal) Primordial can also mean basic and connected with an early stage of development.As she sensed danger, she was overcome with primordial feelings of panic and terror.