anathema vs unpleasant person

anathema and unpleasant person both are nouns.

Word	Noun	Adjective	Verb	Adverb
anathema	Yes	No	No	No
unpleasant person	Yes	No	No	No

As nouns, unpleasant person is a hypernym of anathema; that is, unpleasant person is a word with a broader meaning than anathema:

Other hypernyms of anathema include disagreeable person.

anathema (noun)	unpleasant person (noun)
a formal ecclesiastical curse accompanied by excommunication	a person who is not pleasant or agreeable
a detested person