Wiktionary
adv. in a predominate manner; predominantly
Usage examples of "predominately".
Zamacona scrambled down, up, along, and around, but always predominately downward, through this dark region of palaeogean night.
There was a Free Methodist church in Pulaski, and there was church with a predominately Portuguese congregation in Shawmouth.
From the chaotic streets of Detroit's lower east side, this group of predominately Jewish gangsters would muscle their way into the underworld by 1927, where they would remain through a five year reign of terror.
But he was in an area predominately Gentile - or ex-Gentile (but once a Gentile always a Gentile) so he would go along with the others.
Or, if you want to state it in a politically correct fashion, it undeniably substantiates the postulation that certain mental aberrations tend to be predominately species specific rather than being substantially culturally engendered.