1.
If you say that something is ~, you are emphasizing that it is very good, impressive, intense, or extreme.
His guitar solos are just ~...
It was an ~ moment when Chris won the gold medal.
= incredible
ADJ emphasis
unbelievably
Our car was still going unbelievably well...
He beamed: ‘Unbelievably, we have now made it to the final twice.’
= incredibly
ADV: ADV with cl/group
2.
You can use ~ to emphasize that you think something is very bad or shocking.
I find it ~ that people can accept this sort of behaviour...
= incredible
ADJ: oft it v-link ADJ that emphasis
unbelievably
What you did was unbelievably stupid...
Unbelievably, our Government are now planning to close this magnificent institution.
= incredibly, amazingly
ADV: ADV with cl/group
3.
If an idea or statement is ~, it seems so unlikely to be true that you cannot believe it.
I still find this story both fascinating and ~...
I know it sounds ~ but I never wanted to cheat.
= incredible
ADJ
unbelievably
Lainey was, unbelievably, pregnant again...
ADV: ADV with cl/group