scold vs unpleasant person

scold and unpleasant person both are nouns.

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

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

scold: someone (especially a woman) who annoys people by constantly finding fault
unpleasant person: a person who is not pleasant or agreeable

Other hypernyms of scold include disagreeable person.

scold (noun)	unpleasant person (noun)
someone (especially a woman) who annoys people by constantly finding fault	a person who is not pleasant or agreeable

scold (verb)	unpleasant person (verb)
censure severely or angrily
show one's unhappiness or critical attitude