Synonyms of counteract in English:

counteract


See US English definition of counteract

See UK English definition of counteract

See Spanish definition of contrarrestar

verb

1‘new measures were brought in to counteract counterfeiting’

SYNONYMS
prevent, thwart, frustrate, foil, impede, curb, restrain, forestall, hinder, hamper, balk, oppose, act against, stall, check, resist, withstand, defeat, put a stop to, bring an end to
fend off, ward off, stave off, head off
ANTONYMS

encourage

2‘studying foreign history counteracts tendencies to insularity’

SYNONYMS
offset, counterbalance, balance, balance out, cancel out, even out, counterpoise, countervail, compensate for, make up for, remedy
neutralize, nullify, annul, negate, invalidate
rare counterweigh, equilibrize, negative
ANTONYMS

enhance, exacerbate