Unprecedented meaning - Urban Dictionary: Unprecedented

Much more memorable, however, was a library formed by Iyeyasus grandson the feudal chief of Mito 1662I 700 , who not only collected a vast quantity of books hitherto scattered among Shinto and Buddhist monasteries and private houses, but also employed a number of scholars to compile a history unprecedented in magnitude, the Dai-Nihon-shi.

As the weeks have moved on and we have, to one degree or another, become accustomed to our current normal, I have noticed a new companion on my journey; apathy.

Jane took an unprecedented step in history when she became the first female firefighter in our town.