The phrase 'wholly open' is correct and can be used in written English.
It can be used to emphasize that something is fully or completely open, with no restrictions or limitations. For example, "The discussion was wholly open, allowing participants to share any thoughts or opinions they had."
Still not wholly open, the 2000 is still capable of surprises.
I didn't have any specific or adulterous plans; I was just wholly open.
To enjoy Jane The Virgin, which I do, you should be wholly open to the idea that, dramatically speaking, scandal is more important than feasibility.
His music remains wholly open to many different influences – reflected in the diverse bodies that have commissioned his work and range from the experimental NOW Ensemble, to more traditional bodies like the North Carolina Symphony and the Minnesota Orchestra.
"The opacity of the process, the obvious charge around motivation for the review and the failure to publish it in full left the review's main findings wholly open to criticism.
In a dig at MI5, Hallett said: "To my mind, the concerns that I would not be able to conduct a thorough and fair investigation into the security issues in wholly open evidential proceedings have proved unfounded".
This predicament is understandable given that the innate, comprehensive and inalienable status as well as the wholly open-ended contract anticipated by commentators are corner – rather than core – alternatives in a liberal polity.
Another option is to replace the sidewalls with a fully retractable, material-covered framework, so that the interior of the vehicle can be wholly opened up for loading or discharge.
The Washington Post's Eugene Robinson says General David Petraeus's recent attempts to work some "wiggle room" into the president's deadline amounts to an attempt to turn Washington's troop commitment to Afghanistan into a wholly open-ended one: a commitment President Obama has already promised not to make.
The NYT simply isn't being quite wholly and completely open here.
We think of scientists as wholly rational, open to all possible arguments.
