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Definition of 'counteract'

Verb

  1. act in opposition to
       Synonyms: antagonize antagonise
  2. oppose or check by a counteraction
       Synonyms: countercheck
  3. oppose and mitigate the effects of by contrary actions; "This will counteract the foolish actions of my colleagues"
       Synonyms: countervail neutralize counterbalance
  4. destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war"
       Synonyms: sabotage undermine countermine subvert weaken


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