: to make ineffective or restrain or neutralize the usually ill effects of by means of an opposite force, action, or influence a drug used to counteract fatigue. Other Words from counteract Synonyms More Example Sentences Learn More About counteract.

To counteract is to act in opposition to or against some force in order to neutralize the force. When you try to grab a rope and your friend pulls it away from you in the other direction, this is an example of a time when your friend counteracts your efforts.

To counteract is to work against something in an attempt to reverse it or cancel it out.

Counteract in a Sentence 🔉

1. To counteract the violence in the community, the police increased the number of footmen on patrol.
2. The emergency room staff gave her a shot to counteract the snake venom.
3. In order to counteract any allergic reaction, the child carried injectable epinephrine.

Wiktionary. counteractverb. To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.

The prefix contra- and its variant counter- mean “opposite” or “against.” For instance, the prefix contra- gave rise to the words contradict and contrast, whereas the variant spelling counter- gave rise to counteract and counterfeit.

counterpoise, make up (for), negative, neutralize, offset.

influencing something in an opposite but equally strong way. countervailing evidence.

1 : to throw (a person) into confusion or perplexity tactics to confound the enemy. 2a : refute sought to confound his arguments. b : to put to shame : discomfit a performance that confounded the critics. 3 : damn.

Antidote, derived from the Greek antidoton where anti is a prefix that means against and doton means given.

To counteract something means to reduce its effect by doing something that produces an opposite effect. My husband has to take several pills to counteract high blood pressure. [VERB noun] This event will counteract such trends.

Medical Definition of counteract : to make ineffective or restrain or neutralize the usually ill effects of by an opposite force vitamin K counteracts the effects of warfarin Other Words from counteract

to take action to reduce the influence of something that may be harmful: Spending on marketing and advertising has increased in order to counteract falling sales. These new energy technologies are aimed at counteracting the effects of global warming.

Courts are given independence under our system precisely to counteract the unconstitutional actions of the majority. When exercise feels like a dreaded chore, our bodies release stress hormones that counteract many of its positive effects. You have to counteract it with something, and I guess discipline was the mark.