adversary, adversative, adverse, adversive, against, alien, antagonistic, anti, antipathetic, antithetic, antonymous, at cross-purposes, at odds, at variance with, averse, balancing, clashing, compensating, competitive, con, conflicting, confronting, contradictory, contradistinct, contrapositive, contrarious, contrary, contrary to, contrasted, contrasting, converse, counter, counteractive, counterbalancing, counterpoised, countervailing, cross, cursory, dead against, detrimental, differing, difficult, disaccordant, disagreeing, disappointed, disapprobatory, disapproving, discontented, discordant, discrepant, disenchanted, disgruntled, disillusioned, disinclined, disobedient, displeased, dissatisfied, dissentient, dissenting, enemy, eyeball to eyeball, forced, fractious, hard, harmful, hostile, in conflict with, in opposition, in opposition to, inconsistent, indignant, indisposed, indocile, inimical, inverse, involuntary, low, miserable, mutinous, negative, noncooperative, not easy, obstinate, obverse, opponent, opposed to, opposing, opposite, opposite to, oppositional, oppositive, oppugnant, overthwart, perfunctory, perverse, poor, recalcitrant, refractory, repugnant, resistant, reverse, rigorous, rival, sinister, squared off, stressful, sulky, sullen, troublesome, troublous, trying, turned-off, unappreciative, unapproving, uncomplimentary, unconsenting, uncooperative, unfavorable, unfriendly, unhappy, unpropitious, untoward, unwilling, wretched