. "Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of interferon-gamma." . . . "negative regulation of interferon-gamma biosynthetic process" . "down regulation of interferon-gamma biosynthetic process" . "down-regulation of interferon-gamma biosynthetic process" . "downregulation of interferon-gamma biosynthetic process" . "inhibition of interferon-gamma biosynthetic process" . "negative regulation of interferon-gamma anabolism" . "negative regulation of interferon-gamma biosynthesis" . "negative regulation of interferon-gamma formation" . "negative regulation of interferon-gamma synthesis" . . .