"completely innovative" is correct and usable in written English.
You can use it when you are describing something that is new or novel in some way. For example, "Their product line is completely innovative, offering customers something unique."
And this is a completely innovative area of economics".
It is a completely innovative physical system, yet we have been working toward something like this over the past five years".
The degree to which his flute improvements were completely innovative or represent refinements of contemporary developments is a matter of controversy.
There are amazing possibilities here for completely innovative mini-games and adventures, but these will mostly come from amateur teams rather than Microsoft or Mojang – and most of those teams are still working on Java.
Blue Monday, the band's revolutionary and massive-selling 12" dance single, was simply too influential, says Sumner: he'd felt he couldn't make electronic music unless it was completely innovative.
A completely innovative readout scheme is being developed.
The hub will be welcoming entrepreneurs from all walks of life to build companies and products and live in a completely clean innovative community away from the hustle of main cities.
The concept of de-bundling the industry typical features and re-bundling new features into a completely new, innovative, disruptive model was developed by the founders of the Kunstmuseum in 2006, and they applied it to their own company in 2008.
Implants made of bio-derived biomaterials (BIODERIBIOs) is a completely new, innovative philosophy.
In this way, his traditional approach to painting transformed into a completely new and innovative style by the end of his career.
Overall this successful meeting was a highly fruitful knowledge exchange on traditional and contemporary issues, such as long-lasting protection of cultural heritage objects, material stability of traditional and modern materials, influence of air pollution and non-destructive analyses for the documentation of art objects, to completely new and innovative ideas and approaches.
