Any process that stops, prevents, or reduces the frequency, rate or extent of L-ascorbic acid biosynthetic process.
Synonyms:
exact_synonym:
negative regulation of L-ascorbic acid anabolism; negative regulation of L-ascorbic acid biosynthesis; negative regulation of L-ascorbic acid formation; negative regulation of L-ascorbic acid synthesis; negative regulation of ascorbate biosynthesis; negative regulation of ascorbate biosynthetic process; negative regulation of vitamin C biosynthesis; negative regulation of vitamin C biosynthetic process