His very existence was improbable, inexplicable, and altogether bewildering.
But there was the fact facing me—the fact dazzling, to be seen, like the foam on the depths of the sea, like a ripple on an unfathomable enigma, a mystery greater—when I thought of it—than the curious, inexplicable note of desperate grief in this savage clamor that had swept by us on the river-bank, behind the blind whiteness of the fog.
There are no more uses of "inexplicable" in the book.
Show samples from other sources
With that he turned away and once again started inexplicably walking toward the wall.
James Dashner -- The Scorch Trials
For some inexplicable reason, those words popped into Thomas’s mind.