The Collaborative International Dictionary
Derivative \De*riv"a*tive\, a. [L. derivativus: cf. F. d['e]rivatif.] Obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word.
2. Hence, unoriginal (said of art or other intellectual products.
Derivative circulation, a modification of the circulation
found in some parts of the body, in which the arteries
empty directly into the veins without the interposition of
capillaries.
--Flint. -- De*riv"a*tive*ly, adv. --
De*riv"a*tive*ness, n.
Wiktionary
n. The state or quality of being derivative.
Usage examples of "derivativeness".
He remembered Amy reading a review of The Organ-Grinder's Boy which had first acknowledged the book's pace and readability, and then suggested a certain derivativeness in its plotting.