Primeval and Pristine

Primeval adjective - Relating to or occurring near the beginning of a process, series, or time period.

Pristine is a synonym for primeval in ancient topic. In some cases you can use "Pristine" instead an adjective "Primeval", when it comes to topics like earliest.

Pristine adjective - Being in an original and unused or unspoiled state.

Primeval is a synonym for pristine in original topic. You can use "Primeval" instead an adjective "Pristine".