The Collaborative International Dictionary
Prolificness
Prolificness \Pro*lif"ic*ness\, n. The quality or state of being prolific; fruitfulness; prolificacy.
Wiktionary
prolificness
n. The condition of being prolific
Usage examples of "prolificness".
Their wonderful prolificness in wild, rude songs, with strangely melodious airs that burned themselves into the memory, was one of the salient characteristics of that down-trodden race.