Adeptness

n.

1.

The quality of being adept; skill.

Noun

1.

adeptness - skillful performance or ability without difficulty; "his quick adeptness was a product of good design"; "he was famous for his facility as an archer" Synonyms: adroitness, deftness, quickness, facility

adroitness, deftness, dexterity, facility, manual dexterity, quickness, skillfulness, sleight, touch