inexplainable
adjEtymology From in- + explainable.
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.:
- […]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: