Definitions

counteract

[koun-ter-akt] / ˌkaʊn tərˈækt /

VERB

do opposing action

Synonyms

STRONGEST

cancel out correct counterbalance halt negate neutralize offset prevent rectify redress resist thwart

STRONG

annul buck cancel check contravene countercheck countervail cross defeat fix foil frustrate hinder invalidate negative oppose remediate right

WEAK

counterwork go against

Antonyms

STRONGEST

aid allow assist forward help worsen

STRONG

abet approve break encourage facilitate permit support uphold validate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"If you have a slice of toast for breakfast, have an apple too. Counteract everything with vegetables."

From Fox News • Oct. 18, 2021

Horses: Their Feed and Their Feet.—A manual of horse hygiene, invaluable for the veteran or the novice, pointing out the causes of "Malaria," "Glanders," "Pink Eye," "Distemper," etc., and how to Prevent and Counteract them.

From How To Behave: A Pocket Manual Of Republican Etiquette, And Guide To Correct Personal Habits Embracing An Exposition Of The Principles Of Good Manners; Useful Hints On The Care Of The Person, Eating, Drinking, Exercise, Habits, Dress, Self-Culture, And Behavior At Home; The Etiquette Of Salutations, Introductions, Receptions, Visits, Dinners, Evening Parties, Conversation, Letters, Presents, Weddings, Funerals, The Street, The Church, Places Of Amusement, Traveling, Etc., With Illustrative Anecdotes, a Chapter on Love and Courtship, and Rules of Order for Debating Societies by Wells, Samuel R. (Samuel Roberts)

Counteract this arrangement, and surely the result will be far inferior.

From Confessions of an Etonian by I. E. M.

Vocabulary lists containing counteract

"Don't ban peanuts at school"

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Academic Vocabulary, Unit 3

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Part 3 Vocabulary (Unit 3)

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