forlornness vs loneliness

forlornness and loneliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
forlornness	Yes	No	No	No
loneliness	Yes	No	No	No

As nouns, forlornness and loneliness are synonyms defined as:

forlornness and loneliness: sadness resulting from being forsaken or abandoned

Other synonyms of forlornness include desolation.

forlornness (noun)	loneliness (noun)
sadness resulting from being forsaken or abandoned	a disposition toward being alone
	sadness resulting from being forsaken or abandoned
	the state of being alone in solitary isolation