unfaithfulKK [ənˋfeθfəl] /ənˈfeɪθfəl/發音形容詞1不忠的、外遇的She left him after discovering he had been unfaithful for years.她發現他多年來一直不忠,於是離開了他。2不忠誠的、背棄的正式He was accused of being unfaithful to his own principles.他被指責背棄了自己的原則。3不忠實的、不精確的The subtitles are unfaithful to the original dialogue in several scenes.有幾個場景的字幕並未忠實呈現原本的對話。