a. 1711. Ken, Hymnotheo, Poet. Wks. 1721, III. 357. Each Plant, Worm, Mite, Pebble we behold, Strange Wonders unexplainable enfold.
1858. Mrs. Oliphant, Laird of Norlaw, II. 88. The unconscious, unexplainable poetic elevation of the lad.
1875. Whitney, Life Lang., x. 195. Facts which for the time seem unexplainable by ordinary means.
Hence Unexplainably adv., inexplicably.
1899. Somerville & Ross, Experiences Irish R. M., 247. At last we came, unexplainably, into smooth water.