crabby person vs churl

crabby person and churl both are nouns.

Word	Noun	Adjective	Verb	Adverb
crabby person	Yes	No	No	No
churl	Yes	No	No	No

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

Other hypernyms of crabby person include crank, crosspatch, grouch, grump.

crabby person (noun)	churl (noun)
a quarrelsome grouch	a crude uncouth ill-bred person lacking culture or refinement
	a bad-tempered person
	a selfish person who is unwilling to give or spend