unfortunately
adv. sent.adv. used to say that you are sorry about something or that a situation is unlucky. You use it when you have bad news to share.
adv. used to convey regret or to indicate that a situation is regrettable or unlucky.
Unfortunately, the shop is closed today.
I wanted to join you for dinner, but unfortunately, I have to work late tonight.
The team played exceptionally well throughout the first half; unfortunately, a series of defensive errors in the final minutes cost them the championship title.
From unfortunate + -ly or un- + fortunately.
Sentence adverb — typically placed at the beginning of a sentence followed by a comma, or after the first auxiliary verb.
I unfortunately cannot go.Unfortunately, I cannot go.While it can appear mid-sentence, learners often forget that as a sentence adverb, it most naturally sits at the start of the clause to set the tone.