inefficaciousness
/ˌɪnɛfɪˈkeɪʃəsnəs/
noun
- The quality or state of failing to produce the desired effect; lack of effectiveness.
- Critics pointed to the inefficaciousness of the new law in reducing crime rates.
- The inefficaciousness of the treatment was disappointing for the patients.
- The inefficaciousness of the marketing campaign led to a drop in sales.
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