Effective
Effective adjective - Producing or capable of producing a desired result.
Usage example: an effective treatment of the once-dreaded disease
Valid is a synonym for effective in convincing topic. In some cases you can use "Valid" instead an adjective "Effective", when it comes to topics like productive, operative, in operation.
Mutual synonyms
Both words in one sentence
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The Dark World of the town contains much harder fights, including most of the bosses, but turning off your light and treading lightly is a valid and effective way to play.
Source: Darkness Equals Death -
It is also mentioned, in terms of an Author Tract, that in his society being "flogged in the public square" is considered a valid and effective punishment for minor crimes.
Source: A Taste of the Lash -
Since the majority of enemies have no effective Anti Air Attack, spamming this move is a valid (if profoundly boring) strategy.
Source: Diving Kick
Cite this Source
Valid and Effective. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/effective/valid
Effective & Valid. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/effective/valid>.
Valid or Effective. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/effective/valid.
Google Ngram Viewer shows how "effective" and "valid" have occurred on timeline