counteract

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[edit] English

[edit] Etymology

From counter- +‎ act.

[edit] Pronunciation

[edit] Verb

Infinitive
to counteract

Third person singular
counteracts

Simple past
counteracted

Past participle
counteracted

Present participle
counteracting

to counteract (third-person singular simple present counteracts, present participle counteracting, simple past and past participle counteracted)

  1. 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.

[edit] Synonyms

[edit] Derived terms

[edit] Translations