Word by Word Analysis

أُو۟لَـٰٓئِكَ لَمْ يَكُونُوا۟ مُعْجِزِينَ فِى ٱلْأَرْضِ وَمَا كَانَ لَهُم مِّن دُونِ ٱللَّهِ مِنْ أَوْلِيَآءَ ۘ يُضَـٰعَفُ لَهُمُ ٱلْعَذَابُ ۚ مَا كَانُوا۟ يَسْتَطِيعُونَ ٱلسَّمْعَ وَمَا كَانُوا۟ يُبْصِرُونَ 20

Those were not causing failure [to Allāh] on earth, nor did they have besides Allāh any protectors. For them the punishment will be multiplied. They were not able to hear, nor did they see.