The phrase "avoid confirming" is correct and usable in written English.
You can use it when advising someone to refrain from validating or acknowledging something, often in contexts where confirmation may lead to complications or misunderstandings.
Example: "In sensitive negotiations, it is often best to avoid confirming any details until all parties are in agreement."
Alternatives: "refrain from affirming" or "steer clear of validating".
As the Supreme Court has made clear, willful blindness liability requires evidence of deliberate action to avoid confirming a high probability of wrongdoing.
Recently Republican senators have announced that they are eager to avoid confirming a justice who would vote to recognize a constitutional right to gay marriage.
As we make clear in the Prison Reform Trust briefing, Criminal Damage (pdf), there are ways to avoid confirming a young offender in a criminal career.
She's far from the only female pop star to avoid confirming they are a feminist, even if they will happily talk about female empowerment and equality.
But such efforts to avoid confirming a judge with opposing views may well backfire – it's impossible to call in advance whether forcing a delay will work in the service of one's ideological agenda, or against it.
To avoid confirming the WikiLeaks cable's authenticity, Steven Kovats QC, counsel for the Foreign Office, said the government would stick to a policy of "neither confirm nor deny" anything about the documents.
While the president avoided confirming the Russian military movements, a senior administration official said that confirmation of an influx of troops was what led to the decision that Obama himself should speak publicly.
The paper neatly avoided confirming their existence by implying that such missions "might be needed in the future".
Laurent Blanc avoided confirming that he would continue as France coach following their Euro 2012 quarter-final exit against Spain.
Comey, who had previously avoided confirming the existence of the investigation, acknowledged that it had become a matter of public interest to do so.
Prosecutors are trying to keep the transfer a secret, and the official avoided confirming the men would be taken to Nusakambangan, a prison island off central Java.
