The phrase "altered completely" is correct and usable in written English.
It can be used to describe a situation where something has been changed in its entirety or transformed entirely from its original state.
Example: "The design of the product was altered completely to meet the new safety standards."
Alternatives: "changed entirely" or "transformed completely".
And one of them, of course, which has never actually been worked out, is why photography has altered completely this whole thing of figurative painting, and totally altered it.
That relief turned to joy when Commons' powerful drive just before the end of the first half changed the complexion of the game, which altered completely three minutes into the second half when Samaras levelled.
It had been an almost recreational innings, entirely free of tension or even the need to press particularly hard, the balance of the match altered completely on what seems certain to be a low-scoring pitch (if only because England are going to bat on it twice).
In contrast to bulk material, in thin nanowires, the stacking sequence changes easily, and under particular growth conditions can be altered completely to the wurtzite (WZ) crystal structure [8].
The landscape of the game had altered completely and, with 20 minutes left, McLeish introduced Agbonlahor, who had been struggling with a shoulder injury in the build-up to the game, for Heskey.
I've found that my words have been altered completely in some news pieces and that's also frustrating.
"It alters completely the way writers get treated".
Its effect was to alter completely the gravity of a match that had seemed to be tilting United's way.
Most of them have been abandoned and destroyed or reconstructed with concrete or cement based materials, altering completely their original characteristics.
A change of these fusuma will alter completely the appearance of a room, and their removal will convert two or more rooms into one.
Yet when these inherently unpredictable events occur, they alter completely the course of our future in ways we can never anticipate.
