noun.
The state or quality of being adept or skillful.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the state of being cognitively skillful
Word Usage
"On the afternoon of April 9, 1865, at Appomattox Court House, Grant once again demonstrated the clarity of his thought and the skillfulness of his writing when he crafted surrender terms on the spot."