preternaturally

preternatural +‎ -ly

preternaturally (comparative more preternaturally, superlative most preternaturally)

1. In a preternatural manner; beyond what could possibly be natural.
   • 1997, David Foster Wallace, “A Supposedly Fun Thing I'll Never Do Again”, in A Supposedly Fun Thing I'll Never Do Again, Kindle edition, Little, Brown Book Group:

     Deirdre’s mom never leaves her in the Grotto but also never leaves her side, and has the lipless and flinty-eyed look of a parent whose kid is preternaturally good at something.

• extraordinarily
• supernaturally