gainfulness vs lucrativeness

gainfulness and lucrativeness both are nouns.

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

As nouns, gainfulness and lucrativeness are synonyms defined as:

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

Other synonyms of gainfulness include profitability, profitableness.

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