negatively regulates translation regulation of translation negative regulation of gene expression negative regulation of translation negative regulation of protein biosynthetic process negative regulation of protein synthesis downregulation of protein biosynthetic process GO:0017148 negative regulation of protein anabolism down regulation of protein biosynthetic process negative regulation of protein biosynthesis down-regulation of protein biosynthetic process biological_process Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA. negative regulation of protein formation negative regulation of amide metabolic process negative regulation of protein metabolic process biological regulation