negative regulation of RNA-directed RNA polymerase activity
Known as: inhibition of nucleoside-triphosphate:RNA nucleotidyltransferase (RNA-directed), down regulation of ribonucleic acid replicase activity, inhibition of ribonucleic acid-dependent ribonucleate nucleotidyltransferase activity
Any process that stops, prevents or reduces the frequency, rate or extent of RNA-directed RNA polymerase activity. [GOC:TermGenie]