Synonyms of effectiveness

effectiveness

noun

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

• conclusiveness
• validity
• strength
• authority
• persuasiveness
• credibility
• soundness
• forcefulness
• cogency
• impact
• persuasion
• power
• convincingness
• suasiveness
• force
• influence
• appeal
• weight
• believability
• might
• definitiveness
• punch
• seductiveness
• authoritativeness
• sway

Antonyms & Near Antonyms

• ineffectiveness
• inconclusiveness
• invalidity
• ineffectuality
• unsoundness
• ineffectualness
• weakness
• shakiness
• powerlessness
• feebleness

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

• efficacy
• efficaciousness
• efficiency
• productiveness
• ability
• efficacity
• effectualness
• capability
• edge
• strength
• capacity
• potency
• puissance

Antonyms & Near Antonyms

• ineffectiveness
• inefficiency
• inability
• ineffectuality
• inadequacy
• ineffectualness
• incompetence
• incompetency
• inadequateness

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

• impact
• importance
• significance
• force
• point
• punch
• forcefulness
• appeal
• cogency
• attraction
• payoff
• charm
• fascination

Example Sentences

Recent Examples of effectiveness

In testing the holiday period’s effectiveness, the report also verifies that spending at peak periods of demand does not guarantee the highest marginal return on media spend (MROM). — Arthur Zaczkiewicz, Footwear News, 24 Sep. 2026

This inevitably creates inequities across student access, workforce preparation, cybersecurity and institutional effectiveness. — Tarini Mehta, Sacbee.com, 24 Sep. 2026

And though there are many caucuses, the effectiveness rate of caucuses is usually connected to the engagement level from the leadership. — Katie Kilkenny, HollywoodReporter, 23 Sep. 2026

The effectiveness on the ground helped Miami control time of possession in the first half and hold the San Francisco offense to two possessions before halftime, albeit both touchdowns. — David Furones, Sun Sentinel, 23 Sep. 2026

Amazon is looking to publish more metrics tracking its environmental footprint such as the effectiveness of energy and water usage at sites, Hurst said, part of a wider effort to address concerns from environmentalists and communities. — Jake Angelo, semafor.com, 22 Sep. 2026

While regulators and airlines are optimistic about the potential of Strategic Management of Airspace, Routes and Trajectories (SMART), critics question its effectiveness. — Brittney Melton, NPR, 21 Sep. 2026

Tirzepatide has been shown to reduce the effectiveness of oral hormonal contraceptives during treatment initiation and dose increases, so the FDA advises using an alternate method for four weeks during those periods. — Melissa Rudy, FOXNews.com, 20 Sep. 2026

The next president should ration his calls on the public’s attention, which, after all, protects his own effectiveness and the country’s. — John Dickerson, The Atlantic, 20 Sep. 2026