acrid, adversary, adversative, adverse, adversive, against, aggressive, alien, allergic, antagonistic, anti, antipathetic, antithetic, antonymous, argumentative, at cross-purposes, at loggerheads, at odds, at variance, at war, averse, balancing, battling, bellicose, belligerent, bitter, bloodthirsty, bloody-minded, bloody, breakaway, caustic, chauvinist, chauvinistic, clashing, cold, colliding, combative, compensating, competitive, con, conflicting, confronting, contentious, contradicting, contradictory, contradistinct, contrapositive, contrarious, contrary, contrasted, converse, counter, counteractant, counteracting, counteractive, counterbalancing, counterpoised, countervailing, counterworking, cranky, cross, crotchety, dead against, despiteful, detrimental, differing, difficult, dim, disaccordant, disaffected, disagreeable, disagreeing, disapproving, discordant, discrepant, disenchanted, disharmonious, disinclined, displeased, disproportionate, dissentient, dissident, dissonant, divergent, dour, enemy, eyeball to eyeball, ferocious, fierce, fighting, fractious, full of fight, full of hate, grating, hard, harmful, hateful, hawkish, ill, immiscible, in opposition, inaccordant, incompatible, inconsistent, inharmonious, inhospitable, inimical, inverse, jangling, jarring, jingo, jingoish, jingoist, jingoistic, loath, malevolent, malicious, malignant, martial, militant, militaristic, military, miserable, negative, nonconformist, noncooperative, not charmed, not easy, obstinate, obverse, offensive, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, out of accord, out of whack, overthwart, perverse, pugnacious, put off, quarrelsome, rancorous, reactionary, recalcitrant, refractory, renitent, repugnant, resistant, reverse, revolutionary, rigorous, rival, saber-rattling, sanguinary, sanguineous, savage, scrappy, set against, sinister, soldierlike, soldierly, sore, sour, spiteful, squared off, stressful, trigger-happy, troublesome, troublous, truculent, trying, uncongenial, uncooperative, unfavorable, unfriendly, unharmonious, unpacific, unpeaceable, unpeaceful, unpropitious, unsympathetic, untoward, variant, venomous, virulent, vitriolic, warlike, warmongering, warring, wretched