Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)
highly skilled; skillful; very capable; competent; able
うちの一番腕利きの交渉者はいつも強引に有利な取り引きをする。Our best negotiators always drive a hard bargain. Noun
particularly able person; master-hand; person of ability
Also written 腕きき【うできき】