partisan

noun

1 party leaders reward loyal partisans with key committee positions:

supporter, follower, adherent, devotee, champion, backer, upholder, promoter, fanatic, fan, enthusiast, stalwart, zealot, disciple, votary;

North American booster, cohort;

North American, informal rooter;

rare janissary, sectary.

2 the partisans opened fire from the woods:

guerrilla, freedom fighter, resistance fighter, member of the resistance, underground fighter, irregular soldier, irregular;

terrorist.

adjective

his account was highly partisan:

biased, prejudiced, one-sided, colored, discriminatory, preferential, partial, interested, parti pris, bigoted, sectarian, factional, unjust, unfair, inequitable, unbalanced.

▷antonyms impartial, unbiased.