The prudent

This nominal adjective refers to any prudent person. See how you translated "prudent" in Proverbs 12:16. (See: rc://en/ta/man/jit/figs-nominaladj)

the naive

This nominal adjective refers to any naive person. To be naive is to lack experience and to not be mature. (See: rc://en/ta/man/jit/figs-nominaladj)