pigheadedness vs resolve

pigheadedness and resolve both are nouns.

Word	Noun	Adjective	Verb	Adverb
pigheadedness	Yes	No	No	No
resolve	Yes	No	Yes	No

As nouns, resolve is a hypernym of pigheadedness; that is, resolve is a word with a broader meaning than pigheadedness:

Other hypernyms of pigheadedness include firmness, firmness of purpose, resoluteness, resolution.

pigheadedness (noun)	resolve (noun)
resolute adherence to your own ideas or desires	the trait of being resolute
	a formal expression by a meeting; agreed to by a vote

pigheadedness (verb)	resolve (verb)
	cause to go into a solution
	bring to an end; settle conclusively
	reach a decision
	find the solution
	understand the meaning of
	reach a conclusion after a discussion or deliberation
	make clearly visible