"if not openly" is a correct and commonly used phrase in written English.
It is often used to express a condition or alternative possibility that may not be stated or expressed directly. Example: The politician hinted at a possible change in policy, if not openly admitting it.
Any attempts at personalization were frowned upon, if not openly rejected by the homeowners associations.
During much of the period the artist's ambition was to dramatize human inadequacy in a world that was, if not openly hostile, at the least uncaring.
Barlow, on the other hand, was actively if not openly gay as an adult; even at sixteen, he knew in which direction his desires lay.
Most traditional foundations also proved skeptical, if not openly suspicious, of the Internet, while younger cyber-riche philanthropists were already bored with it.
The prevalence of marijuana use in Australia is widely accepted if not openly condoned, and at least three states have moved to decriminalize the possession of small quantities for personal use.
To complicate things further, several of the mayors along the border, including the one in Lago Agrio, are leftists who, if not openly supporting the FARC, are sympathetic to its program.
"On Monday, I spoke with the director and if she was not openly crying, she was fighting back tears," Ms. Murphy said.
Civil liberties were restricted, political opponents denounced as neutralists or pro-communists were impro-communists wereimprisonedes were andowed to opolitically if they did not opartiesriticize government policy.
At the same time, he recognized that some people do still eat fish, even if they do not openly admit it.
If black voters had not turned the Democratic primaries into a virtual holy crusade for Obama, and if Obama had not openly in the South Carolina primary and subtly in primaries thereafter stoked the black vote, he would have been just another failed Democratic presidential candidate.
However, seen that the process through which the NAS are developed often happens 'behind closed doors' (Termeer et al. 2012: 9), it may be difficult to reconstruct which assumptions have been made and which uncertainties taken into account if these are not openly communicated.
