transcription, транскрипция: [ ʌnspi:kəb(ə)l ]
If you describe something as unspeakable , you are emphasizing that it is extremely unpleasant.
...the unspeakable horrors of chemical weapons...
...unspeakable crimes.
= appalling
ADJ [ emphasis ]
• un‧speak‧ably
The novel was unspeakably boring.
ADV : usu ADV adj