insidiousKK [ˏɪnˋsɪˏdiəs] /ˌɪnˈsɪˌdiəs/發音形容詞1潛伏的、不知不覺加劇的The disease is insidious and often goes undetected for years.這種疾病是潛伏性的,往往多年都沒被發現。2陰險的、狡詐的、居心不良的He used insidious tactics to turn colleagues against each other.他用陰險的手段讓同事互相對立。3誘人卻有害的、暗藏危害的Social media has an insidious effect on teenagers' self-image.社群媒體對青少年的自我形象有種暗藏危害的影響。