. "Any process that stops, prevents, or reduces the frequency, rate or extent of epidermis development." . . . "negative regulation of epidermis development" . "down regulation of epidermis development" . "down-regulation of epidermis development" . "downregulation of epidermis development" . "inhibition of epidermis development" . "negative regulation of epidermal development" . "negative regulation of hypodermis development" . . . .