contentedness vs acceptance

contentedness and acceptance both are nouns.

Word	Noun	Adjective	Verb	Adverb
contentedness	Yes	No	No	No
acceptance	Yes	No	No	No

As nouns, acceptance is a hypernym of contentedness; that is, acceptance is a word with a broader meaning than contentedness:

contentedness (noun)	acceptance (noun)
the state of being contented with your situation in life	the act of accepting with approval; favorable reception
	the act of taking something that is offered
	a disposition to tolerate or accept people or situations
	the mental attitude that something is believable and should be accepted as true
	(contract law) words signifying consent to the terms of an offer (thereby creating a contract)
	a time draft drawn on and accepted by a bank
	the state of being acceptable and accepted