Sloping, Slanting, Askew
This page is the CodyCross answer for the clue below from World of Books, Group 300, Puzzle 4 (Audiobooks).
Question is: Sloping, Slanting, Askew
and the answer is: OBLIQUE
Word Meaning:
OBLIQUE — Not erect or perpendicular; not parallel to, or at right angles from, the base.
Definitions from Wiktionary.