faultless發音形容詞1完美無缺的、無瑕的、無懈可擊的Her performance of the concerto was technically faultless.她那首協奏曲的演出在技巧上無懈可擊。2無可指責的、沒有過失的His conduct throughout the dispute was faultless.在整場爭議中,他的行為完全無可指責。