slantwise

Adjective

 * 1) diagonal, in a direction or orientation between cardinal axes
 * 2) * 1858,, "Telling the Bees" in The Works of John Greenleaf Whittier, Vol. I, Narrative and Legendary Poems,
 * I can see it all now,—the slantwise rain / Of light through the leaves, / The sundown's blaze on her window-pane, / The bloom of her roses under the eaves.

Adverb

 * 1) diagonally, in a direction or orientation between cardinal axes