unutterable/ʌnˈʌtərəbəl/1无法形容的, 难以解释的unable to be described or explainedCopy同义词： indescribableuntellableunspeakableineffableindefinable2不可言喻的, 难以形容的too sacred to be utteredCopy同义词： unnameableineffableunspeakable3无法发音的, 难以言表的too hard to be correctly pronouncedCopy同义词： unpronounceable