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

Its effectiveness will depend on how federal agencies identify emerging threats and respond to companies or individuals that cross legal boundaries. — Aamir Khollam, Interesting Engineering, 6 Nov. 2026

Defense Secretary Pete Hegseth has repeatedly questioned whether women should serve in ground combat and special operations roles, arguing that their inclusion could undermine military effectiveness and physical standards. — James Laporta, CBS News, 5 Nov. 2026

But Perez, 32, said her election sent a message about the effectiveness of connecting with voters on the campaign trail. — Beth Kassab, The Orlando Sentinel, 5 Nov. 2026

As for display effectiveness, the PROLED XDR outperformed every other panel tested here in the AdobeRGB and P3 color gamuts, living up to Apple’s claims in this department. — Joe Osborne, PC Magazine, 5 Nov. 2026

But the effectiveness of sanctions is measured in crises that do not occur—the nuclear test that never happens, for instance, or the shipping lane that remains undisturbed. — S. C. M. Paine, Foreign Affairs, 3 Nov. 2026

Donica says the clinic is gathering observations from guests, while acknowledging that these are not sufficient to make scientific claims about the program’s effectiveness. — Amy O’Brien, Vogue, 3 Nov. 2026

Future research could also explore interventions to mitigate bullying and measure their effectiveness across diverse educational contexts. — Jason Walker, The Conversation, 3 Nov. 2026

But experience of previous support programs has lowered expectations and created a good deal of cynicism about the potential effectiveness of the latest scheme among those at the TIFFCOM content market at Tokyo International Film Festival. — Gavin J Blair, HollywoodReporter, 2 Nov. 2026