abstractionist vs nonobjective

abstractionist is a noun but nonobjective is not a noun.

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

As adjectives, abstractionist and nonobjective are synonyms defined as:

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

Other synonyms of abstractionist include abstract, nonfigurative.

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

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