Synonyms and related words :
adversary, adversative, adverse, adversive, aggressive, alien, antagonistic, anti, antipathetic, antithetic, antonymous, at cross-purposes, balancing, battling, bellicose, belligerent, bloodthirsty, bloody, bloody-minded, breakaway, chauvinist, chauvinistic, chill, chilly, clashing, cold, combative, compensating, competitive, con, conflicting, confronting, contentious, contradicting, contradictory, contradistinct, contrapositive, contrarious, contrary, contrasted, converse, cool, counter, counteractant, counteracting, counteractive, counterbalancing, counterpoised, countervailing, counterworking, cranky, cross, crotchety, dead against, detrimental, difficult, disaccordant, discordant, discrepant, dissentient, dissident, enemy, eyeball to eyeball, ferocious, fierce, fighting, fractious, frosty, full of fight, hard, harmful, hawkish, hostile, icy, ill, in opposition, incompatible, inconsistent, inhospitable, inverse, jingo, jingoish, jingoist, jingoistic, martial, militant, militaristic, military, miserable, negative, nonconformist, noncooperative, not easy, obstinate, obverse, offensive, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, overthwart, perverse, pugnacious, quarrelsome, reactionary, recalcitrant, refractory, renitent, repugnant, resistant, reverse, revolutionary, rigorous, rival, saber-rattling, sanguinary, sanguineous, savage, scrappy, sinister, soldierlike, soldierly, squared off, strained, stressful, tense, trigger-happy, troublesome, troublous, truculent, trying, unamiable, unamicable, uncooperative, uncordial, unfavorable, unfriendly, ungenial, unharmonious, unpacific, unpeaceable, unpeaceful, unpropitious, unsociable, untoward, warlike, warmongering, warring, wretched