romanticist vs doer

romanticist and doer both are nouns.

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

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

Other hypernyms of romanticist include actor, worker.

romanticist (noun)	doer (noun)
an artist of the Romantic Movement or someone influenced by Romanticism	a person who acts and gets things done
someone who indulges in excessive sentimentality

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