artless vs uncultivated

artless and uncultivated both are adjectives.

Word	Noun	Adjective	Verb	Adverb
artless	No	Yes	No	No
uncultivated	No	Yes	No	No

As adjectives, artless and uncultivated are synonyms defined as:

Other synonyms of artless include uncultured.

artless (adjective)	uncultivated (adjective)
simple and natural; without cunning or deceit	(of land or fields) not prepared for raising crops
characterized by an inability to mask your feelings; not devious	characteristic of a person who is not cultivated or does not have intellectual tastes
(of persons) lacking art or knowledge	(of persons) lacking art or knowledge
showing lack of art