effectiveness

noun

Definition of effectivenessnext
1
as in conclusiveness
the capacity to persuade the "guilty" verdict was all the proof needed of the effectiveness of the prosecutor's closing argument

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms
2
as in efficacy
the power to produce a desired result the huge upsurge in sales pretty much demonstrated the effectiveness of the new ad campaign

Synonyms & Similar Words

Antonyms & Near Antonyms
3
as in impact
the quality of an utterance that provokes interest and produces an effect your writing lacks effectiveness because practically every sentence is in the passive voice

Synonyms & Similar Words

Examples Sentences

Recent Examples of Synonyms for effectiveness
  1. efficacy
  2. impact
  3. validity
  4. importance
  5. strength
  6. significance
  7. authority
  8. credibility
Noun
  • The American Dental Association says that 70 years of research backs up the safety and efficacy of adding fluoride to water, a process known as community water fluoridation.
    Jake Piazza, CNBC, 3 Nov. 2024
  • The longstanding goal of Drs. Walpole and Richardson was to take this groundbreaking compound and test its efficacy on the people who needed it most.
    Katie Hafner, Scientific American, 31 Oct. 2024
Definition of efficacy
Noun
  • Longdale says Blizzard hears about the impact Azeroth has had on people’s lives all the time.
    Cameron Koch, Rolling Stone, 23 Nov. 2024
  • This will reflect the full story of your impact, not just your financial growth.
    Jennifer Kamara, Forbes, 22 Nov. 2024
Definition of impact
Noun
  • In 2016, Smith questioned the validity of a lawsuit filed by an LGBT rights group in North Carolina over a state law that aimed to restrict transgender people from using the bathrooms of their preferred gender during an episode on his ESPN Radio show.
    Jackson Thompson, Fox News, 7 Nov. 2024
  • The Nebraska Examiner reported that District Judge Susan Strong from Nebraska's Lancaster County District Court is yet to decide on a court case determining the validity of signatures on the petitions provided to put the measures on Nebraska's ballot.
    Thomas G. Moukawsher, Newsweek, 6 Nov. 2024
Definition of validity
Noun
  • However, their importance declined measurably in the last half of the 20th century.
    arkansasonline.com, arkansasonline.com, 23 Nov. 2024
  • The message that ran throughout the show was of the importance of the moment.
    Billboard Japan, Billboard, 22 Nov. 2024
Definition of importance
Noun
  • Each region has its strengths and specialties, which supports a diverse economy.
    Pioneer Press, Twin Cities, 15 Nov. 2024
  • Previous research has suggested that youth who are categorized as obese tend to have lower muscle strength than those considered normal weight.
    Discover Magazine, Discover Magazine, 15 Nov. 2024
Definition of strength
Noun
  • And there’s the historical significance of the candidates themselves: Harris, 60, would be the first woman and the first person of South Asian descent to serve as U.S. President.
    TIME Staff, TIME, 5 Nov. 2024
  • Mexico's obsession with Korean series — and more cultural curiosity While Mickey’s cultural identity is not a focal point, García-Rulfo, who has played his fair share of drug dealers, recognized the significance of his portrayal of a Mexican lawyer.
    Max Gao, NBC News, 5 Nov. 2024
Definition of significance
Noun
  • Trump could use the executive branch’s authority to rescind certain proposals.
    Li Zhou, WIRED, 23 Nov. 2024
  • Police accountability The incident is the 13th shooting this year to involve a Las Vegas Metropolitan Police officer and the eighth that has led to a fatality, authorities said.
    Karina Tsui, CNN, 22 Nov. 2024
Definition of authority
Noun
  • The ongoing battle on Capitol Hill over Trump's selections underscores how outsider bona fides and shake-it-up attitudes now imbue would-be secretaries with credibility.
    Tal Axelrod, ABC News, 22 Nov. 2024
  • There aren’t many technology firms focused on developing network solutions that span moonshots and penalty shots, but there’s sometimes a different attitude towards innovation in the Far East where NTT originates, so this duality is possibly perceived with more credibility on home soil first.
    Adrian Bridgwater, Forbes, 21 Nov. 2024
Definition of credibility
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Thesaurus Entries Near effectiveness

effectively

effectiveness

effects

See More Nearby Entries 

Cite this Entry

“Effectiveness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/effectiveness. Accessed 28 Nov. 2024.

Copy Citation

Share

More from Merriam-Webster on effectiveness

Nglish: Translation of effectiveness for Spanish Speakers

Britannica English: Translation of effectiveness for Arabic Speakers

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See All

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Plural and Possessive Names: A Guide

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?
See All

Popular in Wordplay

See All

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments

10 Words from Taylor Swift Songs (Merriam's Version)

9 Superb Owl Words

15 Words That Used to Mean Something Different
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
little chihuahua dressing like a turkey for thanksgiving
Is That Gratitude or Attitude? A Thanksgiving Quiz Decide which words express gratitude and which gi...