unutterable

1. ADJ You can use unutterable to emphasize that something, especially a bad quality, is great in degree or intensity. 非常(壞、糟糕)的[書面] [ADJ n]

...unutterable rubbish. ...絕對的垃圾。

2. unutterablyADV

I suddenly felt unutterably depressed. 我忽然感到無法言說的壓抑。