垢ぬける

(1)showing a high degree of refinement and the assurance that comes from wide social experience; "his polished manner"; "maintained an urbane tone in his letters"

(2)幅広い社会的な経験から生まれる高度な教養と自信を示すさま

(1)his polished manner

(2)彼の洗練された態度

(3)maintained an urbane tone in his letters

(4)彼の文章において洗練された調子を維持した