inexplainable

comparative more inexplainable · superlative most inexplainable

1. That cannot be explained.

   The rider himself after a time becomes infected with this inexplainable desperation of terror, and I suppose I must have done so; but for a time I kept the upper hand.

   1881, Margaret O. (Wilson) Oliphant, The Open Door, and the Portrait.

   1 more example

   […]kneeling down before my dead betrothed, I kissed her cold white hand with sincere compunction, before attempting the garbled and probably totally incoherent story with which I endeavoured to explain the inexplainable situation.

   1910, Anna Katharine Green, The House of the Whispering Pines