mocker vs unpleasant person

mocker and unpleasant person both are nouns.

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

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

mocker: 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 mocker include disagreeable person.

mocker (noun)	unpleasant person (noun)
long-tailed grey-and-white songbird of the southern United States able to mimic songs of other birds	a person who is not pleasant or agreeable
someone who jeers or mocks or treats something with contempt or calls out in derision