romanticist vs artist

romanticist and artist both are nouns.

Word	Noun	Adjective	Verb	Adverb
romanticist	Yes	Yes	No	No
artist	Yes	No	No	No

As nouns, artist is a hypernym of romanticist; that is, artist is a word with a broader meaning than romanticist:

romanticist: an artist of the Romantic Movement or someone influenced by Romanticism
artist: a person whose creative work shows sensitivity and imagination

Other hypernyms of romanticist include creative person.

romanticist (noun)	artist (noun)
an artist of the Romantic Movement or someone influenced by Romanticism	a person whose creative work shows sensitivity and imagination
someone who indulges in excessive sentimentality

romanticist (adjective)	artist (adjective)
belonging to or characteristic of Romanticism or the Romantic Movement in the arts