counteract
English
Etymology
Pronunciation
-
- Rhymes: -ækt
Verb
counteract (third-person singular simple present counteracts, present participle counteracting, simple past and past participle counteracted)
- 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.
Synonyms
- See also Wikisaurus:hinder