Adverb
Wearily; heavily; firmly.
Seriously; soberly; gravely.
Grievously; deeply; sorrowfully; miserably.
Source: Webster's dictionary... if anyone thinks they can get an accurate picture of anyplace on the planet by reading news reports, they're sadly mistaken. Bruce Schneier
Heaven have mercy on us all - Presbyterians and Pagans alike - for we are all somehow dreadfully cracked about the head, and sadly need mending. Herman Melville
In the deepest heart of all of us there is a corner in which the ultimate mystery of things works sadly. William James
Humans are just barely intelligent tool users; Darwinian evolutionary selection stopped when language and tool use converged, leaving the average hairy meme carrier sadly deficient in smarts. Charles Stross
It is one of my faults, that though my tongue is sometimes prompt enough at an answer, there are times when it sadly fails me in framing an excuse; and always the lapse occurs at some crisis, when a facile word or plausible pretext is specially wanted to get me out of painful embarrassment. Charlotte Brontë
The child is sadly hurt that doesn't tell his illness. Scottish Gaelic Proverb