First-string and Primeval

First-string adjective - Of the very best kind.

Primeval and first-string are semantically related. In some cases you can use "Primeval" instead an adjective phrase "First-string".

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

First-string and primeval are semantically related. Sometimes you can use "First-string" instead an adjective "Primeval".