Dictionary
mas•ter•ful
Pronunciation: (mas'tur-ful, mä'stur-), [key]—
adj.
1. dominating; self-willed; imperious.
2. having or showing the qualities of a master; authoritative; powerful.
3. showing mastery or skill; masterly:
a masterful performance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.