How to Use "unheard" with Example Sentences

1. But almost everybody in the united states right now likes barack obama : polls give him an approval rating above 80 % , unheard of for a president-elect .

2. Though common with bridges , such bearings are practically unheard of with entire buildings .

3. Such improvements , small though they may seem , are almost unheard of in psychiatry .

4. The a-12 was about 93 percent titanium , a material then unheard of for aircraft design .

5. Something unheard of within your reality ?