gainfulness vs profitability

gainfulness and profitability both are nouns.

Word	Noun	Adjective	Verb	Adverb
gainfulness	Yes	No	No	No
profitability	Yes	No	No	No

As nouns, gainfulness and profitability are synonyms defined as:

gainfulness and profitability: the quality of affording gain or benefit or profit

Other synonyms of gainfulness include lucrativeness, profitableness.

gainfulness (noun)	profitability (noun)
the quality of affording gain or benefit or profit	the quality of affording gain or benefit or profit