The phrase "almost irrefutable" is correct and usable in written English.
It can be used when discussing an argument or evidence that is very strong but may still be subject to some doubt or counterargument.
Example: "The research findings are almost irrefutable, suggesting a clear link between diet and health outcomes."
Alternatives: "nearly undeniable" or "practically indisputable."
But the investigators nonetheless amass almost irrefutable evidence that the Catskills and Dutchess County are crawling with the critters: When Mr. Pridgen appears on camera, the identifying label under his name says, "New York Bigfoot Witness".
That's "almost irrefutable evidence" that BtR-4 is a Bt resistance gene, says Bruce Tabashnik, an entomologist at the University of Arizona, Tucson.
Without transparency and a sound explanation, all of this conveys an almost irrefutable appearance of the CDC a federal public health agency favoring one professional medical association over another.
The one person with the most irrefutable prediction was Joann.
Dr. Shara described the observations as "almost certainly irrefutable proof" that this particular blue straggler formed in a collision rather than the simple coalescing of a binary system.
The damage done by the Photofete.com controversy, Lay's lavish lifestyle and a laundry list of other irrefutable circumstances is almost insurmountable.
Almost by definition, conspiracy theories are irrefutable; rejections by scientific authorities just become part of the conspiracy.
The stereotype has it that religiously grounded political convictions arise from otherworldly sources, are inscribed unambiguously in sacred texts (or interpreted unambiguously by irrefutable authorities) and must be followed almost slavishly.
Most of its assertions were irrefutable.
And those black-and-white statistics, while arguably irrefutable in one way, really tell us almost nothing.
Almost certainly he was the product of an illicit union, the writhing, irrefutable evidence of adultery or fornication in a country where that could mean a lifetime of shame or even death — for the mother and the child.
