0 surprising or shocking because not known about or previously experienced -- 令人震惊的；前所未闻的，空前的
This dependence on languages largely foreign to their designated constituencies on the part of purported nationalists is not necessarily unheard-of or atypical.
Nevertheless, the impact of the reforms was impressive and transformed the lives of many inmates, who enjoyed previously unheard-of privileges and rights.
Technology offers new means and unheard-of possibilities.
There is a lot of sentiment—tosh —about the men who are giving up everything at home in working unheard-of hours on munitions work!
Far from being unheard-of, it could work in this case too.
Some of the steps which we have had to take are the most unheard-of and most unlikely steps.
I know how they were developed even when we were at the same time manufacturing immense and unheard-of quantities of other munitions.
That is a most absurd and unheard-of suggestion.
