Autochthonic and Primeval

Autochthonic adjective - Originating where it is found.

Primeval and autochthonic are semantically related In some cases you can replace term "Primeval" with "Autochthonic", this adjectives are similar.

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

Autochthonic and primeval are semantically related in autochthonous topic. You can use "Autochthonic" instead an adjective "Primeval". rare substitute