Adverb
unpleasantly
Source: WordNetMuch of the tablecloth was a series of grey smudges outlined in a large, irregular patch of yellow that looked distressingly like a urine stain. Bill Bryson
I write in the most distressingly slow way in terms of punctuation and grammar. Maurice Saatchi
his ignorance was painfully obvious Source: Internet
Next, he takes a distressingly small Caucasian skull, shakes hard, and pushes mightily at the foramen magnum with his thumb. Source: Internet
According to the report: "It is distressingly noteworthy that our deliberations took place a quarter of a century after the report of the West Indian Commission was presented in 1992. Source: Internet
Angry that I had been tricked, angry that what we were told and what was expected were clearly two different things, and most distressingly that now Mr. Edwards thought that I thought "a lot" was one word instead of two. Source: Internet