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I guess, my objection to the "stylish" definition is that it's referring to a handle, which can be knobby in the other meaning. If we could see a picture of the handle, we could decide if it were "knobby" (as in having rounded protuberances) or "nobby" (as in stylish).
I'm not sure about elegante...
1. A rounded protuberance.
a. A rounded handle, as on a drawer or door.
b. A rounded control switch or dial.
3. A prominent rounded hill or mountain.
... adj. knobby -American Heritage Dictionary