unheard-of in a sentence

Definition

Unheard-of: not previously known or recognized; extraordinary or unprecedented.

Her talent for painting was truly unheard-of in such a young artist.
The scientist made an unheard-of discovery that could change the future of medicine.
In a twist of fate, the team achieved an unheard-of victory against their long-time rivals.
It was unheard-of for the small town to host such a prestigious event.
The chef's innovative dish was an unheard-of combination of flavors that delighted everyone.