. "\"Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways involving DNA.\" [GOC:ai]" . . "negative regulation of DNA metabolic process" . "down regulation of DNA metabolic process" . "down-regulation of DNA metabolic process" . "downregulation of DNA metabolic process" . "negative regulation of DNA metabolism" . . . . "inhibition of DNA metabolic process" .