Partial or biased in favour of one faction or demographic group.
With one competitor dominant over the other.
That is necessarily or absolutely different than the respective coordinate alethic or temporal modality, but not its opposite.
Turned to one side.
Out of proportion or lopsided.
Having only one side, like a Möbius strip.
Showing excessive devotion to one's own region, nation, party etc.
Adhering to particularism.
One who holds to particularism.