a. 原型的

[ adj ]
representing or constituting an original type after which other similar things are patterned
<adj.all>
archetypal patternsshe was the prototypal student activist

Archetypal \Ar"che*ty`pal\, a.
Of or pertaining to an archetype; consisting a model (real or
ideal) or pattern; original. ``One archetypal mind.''
--Gudworth.

Note: Among Platonists, the archetypal world is the world as
it existed as an idea of God before the creation.