effectatious

effectatious adjective: effective; efficacious.

Adjective

effectatious

(nonstandard) Effective; efficacious.
- A. The therapy treatment is effectatious for three or four months. I question whether it would be of any value after that.1942, New York (State). Court of Appeals, New York Court of Appeals. Records and Briefs., page 193
- Allowing that change agents and those they work with have goals, we focus on what social science research literature has to say about potentially effectatious means for reaching them.1976, Jack Rothman, John L. Erlich, John Erlich, Joseph G. Teresa, Promoting Innovation and Change in Organizations and Communities: A Planning Manual, John Wiley & Sons, →ISBN

They have continued in a silent, but most effectatious way, to spread their hatred against our institutions, our laws, our schools, our rights […]2017, Charles Wilcox, Perverting the Promised Land, →ISBN, page 260:
Wood argues this view was just as mistaken, because it assumed the intentions of political agents were effectatious in a way that we, knowing more about politics now, should reject.2018, Joseph E. Uscinski, Conspiracy Theories and the People Who Believe Them, Oxford University Press, →ISBN, page 97:

Compare affectatious.

What does effectatious mean?: Effectatious means effective; efficacious.
How do you use effectatious in a sentence?: They have continued in a silent, but most effectatious way, to spread their hatred against our institutions, our laws, our schools, our rights […]
What part of speech is effectatious?: Effectatious is an adjective.

Adapted from Wiktionary: effectatious (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

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