Example : A consummate artist.
Consummate skill.
A masterful speaker.
Masterful technique.
A masterly performance of the sonata.
A virtuoso performance.

Synonyms : masterful, masterly, virtuoso

Example : A complete gentleman.
Consummate happiness.
A consummate performance.

Synonyms : complete

Example : An arrant fool.
A complete coward.
A consummate fool.
A double-dyed villain.
Gross negligence.
A perfect idiot.
Pure folly.
What a sodding mess.
Stark staring mad.
A thorough nuisance.
A thoroughgoing villain.
Utter nonsense.
The unadulterated truth.

Synonyms : arrant, complete, double-dyed, everlasting, gross, perfect, pure, sodding, staring, stark, thorough, thoroughgoing, unadulterated, utter

Example : Consummate a marriage.