substantival

In grammar|lang=en terms the difference between nominal and substantival

is that nominal is (grammar) a part of speech that shares features with nouns and adjectives while substantival is (grammar) of or pertaining to a substantive.

As adjectives the difference between nominal and substantival

is that nominal is of, resembling, relating to, or consisting of a name or names while substantival is (grammar) of or pertaining to a substantive.

As a noun nominal

is (grammar) a noun or word group that functions as a noun phrase.

As adjectives the difference between substantival and substantial

is that substantival is (grammar) of or pertaining to a substantive while substantial is having to substance; actually existing; real; as, substantial life.

As a noun substantial is

anything having substance; an essential part.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective substantival is

(grammar) of or pertaining to a substantive.

Nouny is a related term of substantival.

As adjectives the difference between substantival and nouny

is that substantival is of or pertaining to a substantive while nouny is having the characteristics of a noun.