trailblazingadjective
/ˈtreɪlˌbleɪ.zɪŋ//ˈtreɪlˌbleɪ.zɪŋ/being the first to do or use something, in a way that is an example for other people:
He cited the California judges' trailblazing role in overturning a ban on interracial marriage 56 years ago.
trailblazingnoun [ U ]
uk/ˈtreɪlˌbleɪ.zɪŋ//ˈtreɪlˌbleɪ.zɪŋ/the fact of being the first to do or use something, in a way that is an example for other people:
As a young medical student when there were very few other women students, she learned something about the difficulties of trailblazing.