unbelievably

adverb3

1. •
   To an extent not to be believed.

   • His face turned unbelievably blue. We realized he was actually choking.
2. •
   Contrary to expectations, amazingly.

   • Unbelievably, Rudy saved the man's life but got sued for breaking two of his ribs.
3. •
   In a manner that one does not or cannot believe.

   • He gestured unbelievably. Everyone knew he was faking his illness.