Masterful
Part of speech: adjective
Definition: Of or pertaining to the manner of a master.
Part of speech: adverb
Definition: In the manner of a master; very skillful.
Consummate
Part of speech: adjective
Definition: Complete in every detail, perfect, absolute.highly skilled and experienced, fully qualified
Part of speech: verb
Definition: To bring (a task, project, goal etc.) to completion; to accomplish.To make perfect, achieve, give the finishing touchTo make (a marriage) complete by engaging in first sexual intercourse.To become perfected, receive the finishing touch
Example sentence: A reviewer's lot is not always an easy one. I can remember flogging myself to finish Harold Brodkey's 'The Runaway Soul' despite the novel's consummate, unmitigated tedium.