Part of speech:
(Chemistry) To make (a solution) neutral.
Check means to test, examine, compare or inspect something to see if it is as it should be.
To smudge with an offset
Book of Common Prayer
Something that completes, makes up a whole, or brings to perfection:
(Logic) The counterpart of a proposition obtained by exchanging the affirmative for the negative quality of the whole proposition and then negating the predicate:
(Astrol., Astron.) The position of two celestial bodies when their celestial longitudes differ by 180°; esp., the position of a superior planet or the full moon when it is in opposition with the sun
To incur the dislike of; make an enemy of
A substance that counteracts the effects of a poison.
To make the credits and debits of (an account) correspond.
To go against; oppose; conflict with; violate
To correct is defined as to remove errors or to point out errors.
To make null and void
To wrap (strands of hair) in pieces of foil in order to isolate them after bleach or color has been applied.
To make ineffective or invalid; nullify:
To nullify is to invalidate something or cancel the effectiveness of something.
To overcome is to prevail in spite of adversity, to successfully solve a problem or defeat an opponent, or to be consumed with something.
To parry is to answer a question with an evasive reply, or to avoid an attack by using a countermove.
To keep from yielding to, being affected by, or enjoying
(Sports) To make a pass that leads directly towards scoring.
To offer help or advice regarding (a product or service).
(Intransitive) To provide assistance.
The definition of aid means to provide help or to provide some item or advice that will make something easier or that will solve a problem.
The definition of approve is to say you like something or you are alright with it happening.
To compensate is to pay someone for services performed, to repay someone for some wrong or that something positive exists to make up for something negative.
To be a counterbalance to; offset
To act against an often detrimental influence or power.
To give an order or orders; request that something be done or supplied.
Sabotage is defined as to intentionally destroy something.
To intercept (an enemy mine) with a countermine
Subvert is defined as to overthrow, destroy or undermine.
To check again in order to verify.
The definition of frustrate is to hinder someone's plans or efforts, or to make someone feel annoyed because you are hindering their efforts or refusing to cooperate.
Find another word for counteract. In this page you can discover 51 synonyms, antonyms, idiomatic expressions, and related words for counteract, like: invalidate, neutralize, check, halt, hinder, offset, prevent, complement, counterpart, obverse and opposition.