Words similar to unheard-of

Example sentences for: unheard-of

How can you use “unheard-of” in a sentence? Here are some example sentences to help you improve your vocabulary:

McDonald says two-thirds of those who graduate from his program hold down permanent jobs and apartments--an almost unheard-of success rate among single homeless men.
unpretentious and powerful stories" ( Publishers Weekly ). The oohs and aahs come over Englander's reported $350,000 advance, an unheard-of sum for a debut short story collection.
?] unheard-of.
In October the Times Higher Education Supplement reported that, thanks to advances in supercollider technology that enable the precise calibration of subatomic quantum energy and computer programs that are able to model the behavior of this energy with previously unheard-of speed and precision, we may soon have a glimpse of the real thing.
This is not an unheard-of phenomenon, by the way, with certain volatile personalities who work together.