crumb vs unpleasant person

crumb and unpleasant person both are nouns.

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

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

Other hypernyms of crumb include disagreeable person.

crumb (noun)	unpleasant person (noun)
small piece of e.g. bread or cake	a person who is not pleasant or agreeable
a person who is deemed to be despicable or contemptible
a very small quantity of something