profitableness vs gainfulness

profitableness and gainfulness both are nouns.

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

As nouns, profitableness and gainfulness are synonyms defined as:

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

Other synonyms of profitableness include lucrativeness, profitability.

profitableness (noun)	gainfulness (noun)
the quality of affording gain or benefit or profit	the quality of affording gain or benefit or profit
the quality of being encouraging or promising of a successful outcome