nonpartisan; unaffiliated; independent
Used for a person or stance that does not belong to any specific political party, faction, or school of thought. Often appears in political or ideological contexts.
He takes a nonpartisan stance.
The number of independent lawmakers is increasing.
non-factional; unaffiliated with a political faction
Compound of 無 (mu, 'without') and 派 (ha, 'faction' or 'school'). The exact historical derivation is uncertain, but the meaning is transparent from its components.