effectatious

Effective; efficacious.

Adjective

  1. 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...
    • 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....
    • 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:

Origin

Compare affectatious.