abstractionist vs nonfigurative

abstractionist is a noun but nonfigurative is not a noun.

Word	Noun	Adjective	Verb	Adverb
abstractionist	Yes	Yes	No	No
nonfigurative	No	Yes	No	No

As adjectives, abstractionist and nonfigurative are synonyms defined as:

abstractionist and nonfigurative: not representing or imitating external reality or the objects of nature

Other synonyms of abstractionist include abstract, nonobjective.

abstractionist (noun)	nonfigurative (noun)
a painter of abstract pictures

abstractionist (adjective)	nonfigurative (adjective)
not representing or imitating external reality or the objects of nature	not representing or imitating external reality or the objects of nature