COUNTERACT
sabotage, undermine, countermine, counteract, subvert, weaken
(verb) destroy property or hinder normal operations; “The Resistance sabotaged railroad operations during the war”
counteract, countervail, neutralize, counterbalance
(verb) oppose and mitigate the effects of by contrary actions; “This will counteract the foolish actions of my colleagues”
antagonize, antagonise, counteract
(verb) act in opposition to
countercheck, counteract
(verb) oppose or check by a counteraction
Source: WordNet® 3.1
Etymology
Noun
counteract (plural counteracts)
An action performed in opposition to another action.
Verb
counteract (third-person singular simple present counteracts, present participle counteracting, simple past and past participle counteracted)
To have a contrary or opposing effect or force on
To deliberately act in opposition to, to thwart or frustrate
Synonyms
• See also hinder
Source: Wiktionary
Coun`ter*act" (koun`tr-kt"), v. t. [imp. & p. p. Counteracted; p. pr.
& vb. n. Counteracting.]
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition