N. counteraction, opposition, contrariety, antagonism, polarity, clashing, collision, interference, inhibition, resistance, renitency, friction, reaction, retroaction, counterblast, neutralization, vis inertiae, check, voluntary opposition, voluntary resistance, repression, opposites, action and reaction, yang and yin, yang-yin (contrariety) 14

V. counteract, run counter, clash, cross, interfere with, conflict with, contravene, jostle, go against, run against, beat against, militate against, stultify, antagonize, block, oppose, traverse, withstand, hinder, repress, react, undo, neutralize, counterpoise, overpoise

Adj. counteracting, antagonistic, conflicting, retroactive, renitent, reactionary, contrary

Adv. although, in spite of, against

Phr. "for every action there is a reaction, equal in force and opposite in direction", words relating to space 1, abstract space

N. impulse, impulsion, impetus, momentum, push, pulsion, thrust, shove, jog, jolt, brunt, booming, boost, throw, explosion, propulsion, percussion, concussion, collision, occursion|, clash, encounter, cannon, carambole, appulse, shock, crash, bump, impact, elan, charge, beating, blow, dint, stroke, knock, tap, rap, slap, smack, pat, dab, fillip, slam, bang, hit, whack, thwack, cuff, squash, dowse, swap, whap, punch, thump, pelt, kick, punce|, calcitration, ruade, arietation|, cut, thrust, lunge, yerk|, carom, carrom, clip *, jab, plug*, sidewinder*, sidewipe, sideswipe, hammer, sledge hammer, mall, maul, mallet, flail, ram, rammer, battering ram, monkey, pile-driving engine, punch, bat, cant hook, cudgel, ax, dynamics, seismometer, accelerometer, earthquake detector

V. give an impetus, impel, push, start, give a start to, set going, drive, urge, boom, thrust, prod, foin, cant, elbow, shoulder, jostle, justle, hustle, hurtle, shove, jog, jolt, encounter, run against, bump against, butt against, knock one's head against, run one's head against, impinge, boost, bunt, carom, clip y, fan, fan out, jab, plug *, strike, knock, hit, tap, rap, slap, flap, dab, pat, thump, beat, blow, bang, slam, dash, punch, thwack, whack, hit hard, strike hard, swap, batter, dowse|, baste, pelt, patter, buffet, belabor, fetch one a blow, poke at, pink, lunge, yerk, kick, calcitrate, butt, strike at, whip *c, (punish) 972, come into a collision, enter into collision, collide, sideswipe, foul, fall foul of, run foul of, telescope, throw

Adj. impelling, impulsive, impellent, booming, dynamic, dynamical, impelled

Phr. "a hit, a very palpable hit"

N. n, opposition, antagonism, oppugnancy, oppugnation, impugnation|, contrariety, contravention, counteraction, counterplot, cross fire, undercurrent, head wind, clashing, collision, conflict, competition, two of a trade, rivalry, emulation, race, absence of aid, resistance, restraint, hindrance

V. oppose, counteract, run counter to, withstand, control, hinder, antagonize, oppugn, fly in the face of, go dead against, kick against, fall afoul of, run afoul of, set against, pit against, face, confront, cope with, make a stand, make a dead set against, set oneself against, set one's face against, protest against, vote against, raise one's voice against, disfavor, turn one's back upon, set at naught, slap in the face, slam the door in one's face, be at cross purposes, play at cross purposes, counterwork, countermine, thwart, overthwart, work against, undermine, stem, breast, encounter, stem the tide, breast the tide, stem the current, stem the flood, buffet the waves, beat up against, make head against, grapple with, kick against the pricks, contend, do battle -with, do battle against, contradict, contravene, belie, go against, run against, beat against, militate against, come in conflict with, emulate, rival, spoil one's trade

Adj. opposing, opposed, adverse, antagonistic, contrary, at variance, at issue, at war with, unfavorable, unfriendly, hostile, inimical, cross, unpropitious, in hostile array, front to front, with crossed bayonets, at daggers drawn, up in arms, resistant, competitive, emulous

Adv. against, versus, counter to, in conflict with, at cross purposes, against the grain, against the current, against the stream, against the wind, against the tide, with a headwind, with the wind ahead, with the wind in one's teeth, in spite, in despite, in defiance, in the way, in the teeth of, in the face of, across, athwart, overthwart, where the shoe pinches, in spite of one's teeth, though, even, quand meme, per contra

Phr. nitor in adversum

N. contention, strife, contest, contestation, struggle, belligerency, opposition, controversy, polemics, debate, war of words, logomachy, litigation, paper war, high words, sparring, competition, rivalry, corrivalry, corrivalship, agonism|, concours, match, race, horse racing, heat, steeple chase, handicap, regatta, field day, sham fight, derby day, turf, sporting, bullfight, tauromachy, gymkhana, boat race, torpids, wrestling, greco-roman wrestling, pugilism, boxing, fisticuffs, the manly art of self-defense, spar, mill, set-to, round, bout, event, prize fighting, quarterstaff, single stick, gladiatorship, gymnastics, jiujitsu, jujutsu, kooshti, sumo, athletics, athletic sports, games of skill, shindy, fracas, clash of arms, tussle, scuffle, broil, fray, affray, affrayment|, velitation|, colluctation|, luctation, brabble, brigue|, scramble, melee, scrimmage, stramash, bushfighting, free fight, stand up fight, hand to hand, running fight, conflict, skirmish, rencounter, encounter, rencontre, collision, affair, brush, fight, battle, battle royal, combat, action, engagement, joust, tournament, tilt, tilting, tournay, list, pitched battle, death struggle, struggle for life or death, life or death struggle, armageddon, hard knocks, sharp contest, tug of war, naval engagement, naumachia, sea fight, duel, duello, single combat, monomachy, satisfaction, passage d'armes, passage of arms, affair of honor, triangular duel, hostile meeting, digladiation, deeds of arms, feats of arms, appeal to arms, pugnacity, combativeness, bone of contention

V. contend, contest, strive, struggle, scramble, wrestle, spar, square, exchange blows, exchange fisticuffs, fib|, justle, tussle, tilt, box, stave, fence, skirmish, pickeer, fight, wrangle, contend &c. with, grapple with, engage with, close with, buckle with, bandy with, try conclusions with, have a brush, with, tilt with, encounter, fall foul of, pitch into, clapperclaw, run a tilt at, oppose, reluct, join issue, come to blows, go to loggerheads, set to, come to the scratch, exchange shots, measure swords, meet hand to hand, take up the cudgels, take up the glove, take up the gauntlet, enter the lists, couch one's lance, give satisfaction, appeal to arms, lay about one, break the peace, compete with, cope with, vie with, race with, outvie, emulate, rival, run a race, contend &c. for, stipulate for, stickle for, insist upon, make a point of

Adj. contending, together by the ears, at loggerheads at war at issue, competitive, rival, belligerent, contentious, combative, bellicose, unpeaceful, warlike, quarrelsome, pugnacious, pugilistic, gladiatorial, palestric, palestrical

Phr. a verbis ad verbera, a word and a blow, "a very pretty quarrel as it stands", commune periculum concordiam parit, lis litem generat