Lest you should think it showed a revolting insensibility in Tom that he felt any new anger toward Maggie for this uncalled-for and, to him, inexplicable caress, I must tell you that he had his glass of cowslip wine in his hand, and that she jerked him so as to make him spill half of it.
Is it an inexplicable thing that a girl should enjoy her lover’s society the more for the presence of a third person, and be without the slightest spasm of jealousy that the third person had the conversation habitually directed to her?
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.