acrid, adversary, adversative, adverse, adversive, ajar, alien, antagonistic, anti, antipathetic, antithetic, antonymous, at cross-purposes, balancing, belligerent, bitter, breakaway, caustic, clashing, colliding, compensating, competitive, con, confronting, confused, 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, disaccordant, disagreeing, disconsonant, discordant, discrepant, disharmonious, dissentient, dissident, dissonant, enemy, eyeball to eyeball, fractious, full of hate, grating, hard, harmful, harsh, hateful, hostile, in opposition, incompatible, incongruent, incongruous, inconsistent, inharmonious, inimical, inverse, jangling, jangly, jarring, jostling, malevolent, malicious, malignant, miserable, negative, nonconformist, noncooperative, not easy, obstinate, obverse, off-color, off-tone, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, out of accord, overthwart, perverse, quarrelsome, rancorous, reactionary, recalcitrant, refractory, renitent, repugnant, resistant, reverse, revolutionary, rigorous, rival, set against, sinister, sore, spiteful, squared off, stressful, troublesome, troublous, trying, uncooperative, unfavorable, unfriendly, unharmonious, unpropitious, untoward, venomous, virulent, vitriolic, warring, wretched
contrariety, contrast, foil, antithesis, oppositeness, contradiction, antagonism, clashing, repugnance, inversion, the opposite, the reverse, the inverse, the converse, the antipodes, the antithesis, the other extreme, contrary, contrarious, contrariant, opposite, counter, dead against, converse, reverse, opposed, antithetical, contrasted, antipodean, antagonistic, opposing, conflicting
, inconsistent, contradictory, at cross purposes, negative, hostile, differing toto coelo, diametrically opposite, diametrically opposed, as opposite as black and white, as opposite as light and darkness, as opposite as fire and water, as opposite as the poles, as different as night and day, Hyperion to a satyr, quite the contrary, quite the reverse, no such thing, just the other way, tout au contraire, contrarily, contra, contrariwise, per contra, on the contrary, nay rather, vice versa, on the other hand, all concord's born of contraries, Thesis, antithesis, synthesis.
counteraction, opposition, contrariety, antagonism, polarity, clashing, collision, interference, inhibition, resistance, renitency, friction, reaction, retroaction, counterblast, neutralization, vis inertiae, check, voluntary opposition &c, voluntary resistance, repression, opposites, action and reaction, yang and yin, yang-yin (contrariety), counteracting, antagonistic, conflicting
, retroactive, renitent, reactionary, contrary, although, in spite of, against, for every action there is a reaction, equal in force and opposite in direction.