Rather, it will come to them unexpectedly and bewilder them, and they will not be able to repel it, nor will they be reprieved.
The Saheeh International Quran Translation
بَلْ تَأْتِيهِم بَغْتَةً فَتَبْهَتُهُمْ فَلَا يَسْتَطِيعُونَ رَدَّهَا وَلَا هُمْ يُنظَرُونَRather, it will come to them unexpectedly and bewilder them, and they will not be able to repel it, nor will they be reprieved.