'Inventiveness' definitions:

Definition of 'inventiveness'

From: WordNet
noun
The power of creative imagination [syn: inventiveness, ingeniousness, ingenuity, cleverness]

Definition of 'Inventiveness'

From: GCIDE
  • Inventive \In*vent"ive\, a. [Cf. F. inventif.] Able and apt to invent; quick at contrivance; ready at expedients; as, an inventive head or genius. --Dryden. -- {In*vent"ive*ly}, adv. -- {In*vent"ive*ness}, n. [1913 Webster]