sadly

In a sad manner; sorrowfully.

“Only when we climb up can we see it,” he said sadly.

Unfortunately, sad to say.

If you think you’re getting out of this place alive, you are sadly mistaken, my friend.

Sadly, the two were never to meet again.

In a manner to cause sadness; badly; terribly.

The people of Ebeltoft were once sadly plagued by them, as they plundered their pantries in a most unconscionable manner; so they consulted a very wise and pious man and his advice was, that they should hang a bell in the steeple of the church.

Very much (of a desire etc.); dearly; urgently.

"Don't ask me: don't make me talk of it," she answered. "I'm not fit now. I have been cruelly used and cruelly wronged. You will be kinder than ever, if you will walk on fast, and not speak to me. I sadly want to quiet myself, if I can."

Deeply, completely.

By my feythe sayd syre launcelot in that pauelione wil I lodge alle this nyghte / and soo there he alyghte doune and tayed his hors to the pauelione / and there he vnarmed hym / and there he fond a bedde / and layd hym theryn / and felle on slepe sadly