Capable
Capable adjective - Having the required skills for an acceptable level of performance.
Effective is a synonym for capable in effectual topic. In some cases you can use "Effective" instead an adjective "Capable", when it comes to topics like proficient, competent.
Nearby Words: capability, capably
Effective
Effective adjective - Producing or capable of producing a desired result.
Usage example: an effective treatment of the once-dreaded disease
Capable is a synonym for effective in productive topic. You can use "Capable" instead an adjective "Effective", if it concerns topics such as effectual, proficient, efficient.
Mutual synonyms
Both words in one sentence
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Off duty, Tashigi from One Piece is a Cute Clumsy Girl, but she's actually a very capable and effective officer.
Source: Specs of Awesome - Despite his growing insanity, he seems to be a capable and effective leader.
Source: Web Video / Macross Abridged -
The Virginia-class, a more cost-effective (though not quite as capable) evolution of the Sea Wolf is instead slated to replace the Los Angeles class.
Source: Super Prototype
Cite this Source
Effective and Capable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/capable/effective
Capable & Effective. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/capable/effective>.
Effective or Capable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/capable/effective.
Google Ngram Viewer shows how "capable" and "effective" have occurred on timeline