What are the antonyms for EFFECTIVENESS?

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Usage Examples for EFFECTIVENESS

  1. Clearness and effectiveness are the qualities that he most highly valued. - "Selections from the Prose Works of Matthew Arnold" by Matthew Arnold
  2. The reader into whose hands this volume falls will be deeply interested in the ideals of teaching implied in the concrete suggestions given in the following pages, for after all the value of any system of special methods rests, not merely on its apparent and immediate psychological effectiveness, but also on the social purposes which it is devised to serve. - "The Teaching of History" by Ernest C. Hartwell