The Collaborative International Dictionary
Masterliness
Masterliness \Mas"ter*li*ness\, n. The quality or state of being masterly; ability to control wisely or skillfully.
Wiktionary
masterliness
n. The quality of being masterly.
Usage examples of "masterliness".
I demonstrated all too lamentably my lack of masterliness and found myself most horribly insulted and abused.