flouter vs unpleasant person

flouter and unpleasant person both are nouns.

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

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

flouter: 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 flouter include disagreeable person.

flouter (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