abysmally

adv

1. Very; incredibly; profoundly; to an extreme degree; dreadfully.

   “Abysmally ignorant”

   “Am I alone in feeling smug (if slatternly) about the news that super-clean homes are a breeding ground for infection? Apparently, all that bleach is bad not just for germs but for children's immune systems, too, and paradoxically causes more disease than it prevents. Not round my gaff. Oh no. My standards of housekeeping are so abysmally low that my eldest daughter was three years old before she even developed a temperature.”