Counteract meaning

What does “counteract” mean? Definitions, examples, synonyms and opposites.

“counteract” is a verb with 4 meanings. Its most common meaning is: act in opposition to.

counteract

act in opposition to
Synonymsantagonize antagonise
oppose or check by a counteraction
Synonymscountercheck
oppose and mitigate the effects of by contrary actions
“This will counteract the foolish actions of my colleagues”
Synonymscountervail neutralize counterbalance
destroy property or hinder normal operations
“The Resistance sabotaged railroad operations during the war”
Synonymssabotage undermine countermine subvert weaken

Source: WordNet 3.1, Princeton University