uncommonly

adv

1. To an uncommon degree; unusually or extremely.

   “It strikes me that you have come off uncommonly easy, seeing as how things were. No mess, no breakages, no odds and ends from every room that you can't remember until it's too late to claim. Just one big lot taken clean.”

   “For a gentleman, he was uncommonly rude, but she supposed wearing silk and jade gave him that privilege.”

2. Not often; on rare occasions.

   “Not uncommonly, I find that I have arrived too late to catch my train.”