Counterbalance

Noun

 * 1) lit.  A weight that is put in opposition to an equal weight so it keeps that in balance.
 * 2)  A force or influence that balances, checks or limits an opposite one.

Synonyms

 * counterpoise
 * counterweight

Verb

 * 1) To apply weight in order to balance an opposing one.
 * ''Big brother counterbalances his two siblings to the pound
 * 1) To apply force in order to balance an opposite one.
 * ''Arm wrestling is undecided as long as the opponents counterbalance each-other
 * 1)  To match or equal in effect, but acting in opposition

Synonyms

 * to counteract
 * to counterpoise
 * to counterweight
 * to offset

Antonyms

 * to outweigh
 * to overcome
 * to overpower

Thesaurus
accommodate, adjust, amend, annul, antipode, antipodes, antipole, antithesis, antonym, atone for, balance, ballast, be at cross-purposes, be heavy, be opposed to, bring to nothing, buffer, cancel, cancel out, carry weight, clash, come to nothing, compensate, conflict, conflict with, consideration, contra, contradict, contrapose, contrast with, contravene, controvert, converse, coordinate, correct, counter, counteract, counterblast, countercheck, countercurrent, counterforce, counterinfluence, counterpoint, counterpoise, counterpole, counterpose, counterpressure, counterterm, countervail, counterweigh, counterweight, counterwork, crosscurrent, equalize, equate, equipoise, equiponderate, equivalent, even, even up, firm, firm up, fit, foil, foul wind, freeze, frustrate, give-and-take, have weight, head wind, heft, hold, hold the scales, immobilize, integrate, invalidate, inverse, juxtapose in opposition, keep, level, lie heavy, make up, makeweight, nail down, negate, negativate, negative, neutralize, nullify, obverse, offset, oppose, opposite, opposite number, oppugn, outweigh, pin down, play at cross-purposes, poise, proportion, quid pro quo, rectify, redeem, retain, reverse, run counter to, set off, setoff, something of value, square, square up, stabilitate, stabilize, steady, stick, strike a balance, stultify, the contrary, the other side, thwart, tip the scales, tit for tat, transfix, undercurrent, undo, vis-a-vis, vitiate, void, weigh, weigh heavy, weigh in, weigh out, weight