He wore them with the careless impertinence of utter ease in the unbecoming, and the very grotesqueness of his appearance became a declaration of his superiority, a superiority great enough to warrant disregard of so much ungainliness.
There are no more uses of "ungainly" in the book.
Show samples from other sources
At that she flung her head high, spun on her ungainly legs and gallumphed back down the ridge apparently more indignant than afraid.
Farley Mowat -- Never Cry Wolf
We struggle with the ungainly thing, making all kinds of clanking noises as we wobble down the stairs.