Wiktionary
unfalsifiable
a. (context relating to a statement or argument English) not able to be proven false, but not necessarily true.
Usage examples of "unfalsifiable".
Varieties of light glanced off the surface borders of air and water, water and glass, glass and oil, the whole room a medium of nonuniform density, these propagating waves graining her body, soon to be rubbed and soaped and misted, transformed in displaceable mass, passing through itself, beauty bare, an unfalsifiable and self-blinding essence, not subject to the judgments of mirrors, what Euclid might have danced to in the summer dusk.