yearning vs hungriness

yearning and hungriness both are nouns.

Word	Noun	Adjective	Verb	Adverb
yearning	Yes	No	No	No
hungriness	Yes	No	No	No

As nouns, yearning and hungriness are synonyms defined as:

Other synonyms of yearning include longing.

yearning (noun)	hungriness (noun)
prolonged unfulfilled desire or need	strong desire for something (not food or drink)
	prolonged unfulfilled desire or need
	a physiological need for food; the consequence of food deprivation