Al Qahhar – The Dominant

He who dominates all things, and prevails upon them to do whatever He wills.
“Never think that Allah would fail his messengers in His promise: for Allah is Exalted in power, – the Lord of Retribution. One day the earth will be changed to a different earth, and so will be the heavens, and (men) will be marshalled forth, before Allah, the One, THE IRRESISTIBLE”
(14:47,48) The Holy Quran
From the root
q-h-r with the 
classical Arabic
connotations:
to overcome,
conquer
to overpower,
master
to dominate over,
prevail
to subdue,
subjugate, 
to compel against
one's wishes
Allah prevails over all of creation. He overcomes all obstacles.
He is victorious over any opposition. His will is irresistible.
He is dominant.
He is master of all. To whom all submit.

“Al Qahhar is the One who breaks the backs of His powerful
enemies.Everything in existence is subjected to His dominance and power
and is helpless in His grasp”. Ghazali

Quran tells us: The Holy Quran (39:4)