The phrase "altogether altered" is correct and usable in written English.
It can be used to describe something that has been completely changed or transformed.
Example: "The landscape was altogether altered after the construction of the new highway."
Alternatives: "completely changed" or "entirely modified".
After two years of development, the team ran into limitations on the PlayStation hardware and faced a critical choice: either terminate the project altogether, alter their vision to fit the constraints of the hardware, or continue to explore more options.
Thus, coronations (or their religious elements, at least) have often been discarded altogether or altered to reflect the constitutional nature of the states in which they are held.
Bolosier and de Coteau eschew coconut altogether, which alters the dish completely, making it far more savoury – still indisputably good, but I miss its tropical taste.
Sometimes they hide themselves altogether, erupting to alter the whole structure, like Minty in 'England Made Me.' Erupted to the good, he thought.
In walking the same jungle trails, getting mugged by the same fierce heat and sleeping in the same simple bush villages, I discovered why Greene wrote that his was "altogether a trip that altered life".
In the name of accuracy, apparently, some familiar legendary elements have been altered or dropped altogether.
But the sounds and the rhythms connote another discipline altogether: electric funk, shocked and altered through wah-wah and distortion pedals.
Church of England rituals including communion and shaking hands as a 'sign of the peace' are being altered or dropped altogether as concern mounts about the spread of swine flu.
In addition, sound events belonging to specific levels in the multilevel structure can be individually varied in time, loudness or excluded altogether, and their sound properties altered.
Altogether, these findings suggest an altered host response to HBV infection in HIV-1 infected and uninfected IDUs and non-IDUs from coastal Kenya.
