jeerer vs unpleasant person

jeerer and unpleasant person both are nouns.

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

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

jeerer: someone who jeers or mocks or treats something with contempt or calls out in derision
unpleasant person: a person who is not pleasant or agreeable

Other hypernyms of jeerer include disagreeable person.

jeerer (noun)	unpleasant person (noun)
someone who jeers or mocks or treats something with contempt or calls out in derision	a person who is not pleasant or agreeable