Show pageBacklinksExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. power to be effective; the quality of being able to bring about an effect. synonyms: effectiveness, effectuality, effectualness. Antonyms: ineffectiveness, ineffectuality, ineffectualness. lacking the power to be effective. effectivity.txt Last modified: 2025/05/13 02:07by 127.0.0.1