adeptness

[uh-dept-nis]

noun

1. the quality or fact of being highly skilled or expert at something; proficiency.

   Thanks to the teacher’s adeptness at explaining the intricacies of calculus, her students quickly grasped even the more arcane concepts.

Other Word Forms

• nonadeptness noun
• unadeptness noun

Word History and Origins

Origin of adeptness¹

adept ( def. ) + -ness ( def. )