only 1 use
(click/touch triangles for details)
- Afterward...There were other things, hideous, important things behind her and rising vaguely in her mind, but first, above all, just one thing: to see him again... She came to the quarry and she looked slowly, carefully, stupidly about her, stupidly because the enormity of what she saw would not penetrate her brain: she saw at once that he was not there.2.2 — Part 2 Chapter 2 (94% in)
There are no more uses of "enormity" in The Fountainhead.
Typical Usage (best examples)