"completely suitable for" is correct and can be used in written English.
You can use it whenever you want to emphasize that something is perfectly suitable. For example: This house is completely suitable for our growing family.
The cabin is good and spacious, making it completely suitable for four large adults – though luggage space isn't quite as generous.
While there presently exist many software-based storytelling applications, most are deemed not completely suitable for Chinese children.
Another output of this model is proposing the time of production, stop, dispatch, and other issues which are completely suitable for real systems.
These particularities of the VANETs make it difficult to employ a traditional MANET network layer in the VANET, which is not completely suitable for this special category of networks.
"Someone else is going to be killed!" "Oh, good!" Such a devil-may-care attitude may be surprising in everyday life, but it is completely suitable for Speakeasy Dollhouse, the immersive theater experience created by Cynthia von Buhler.
Current laparoscopic instruments are not completely suitable for NOTES in terms of a stable platform and anastomosis.
Despite the broad spectrum of cellulases being isolated, no single enzyme is completely suitable as it is, for the hydrolysis of lignocellulose.
Even though we focus on finite difference approximations, we stress that the methodology is completely general and suitable for all semi-discrete energy-stable approximations.
The advantage of this self-calibration method is that the whole robot camera system can be calibrated without any manual intervention, which enables robot calibration to be completely online and suitable for the fast programming of the robot and computer vision combined work cell.
They however point out that there is still no MRI-based methodology that has been completely validated as suitable for integration in clinical routine.
Based on these considerations, we chose to use a definition that is not completely general but more suitable for our specific purposes here.
