This is the 16193rd most frequent Korean word.
불행하게도
Unfortunately.
In this sentence, '불행하게도' highlights an ongoing unfortunate condition.
그녀는 불행하게도 병으로 고통받고 있습니다.
Sadly, she is suffering from an illness.
'불행하게도' signifies a lamentable outcome of an endeavor in the example given.
불행하게도, 우리의 계획이 실패로 끝났습니다.
Tragically, our plan ended in failure.
Here, '불행하게도' is used to express a regretful situation that has occurred.