underexposure

[ uhn-der-ik-spoh-zher ]
/ ˌʌn dər ɪkˈspoʊ ʒər /

noun

inadequate exposure, as of photographic film.
a photographic negative or print that is imperfect because of insufficient exposure.

Origin of underexposure

First recorded in 1870–75; under- + exposure

British Dictionary definitions for underexposure

underexposure
/ (ˌʌndərɪkˈspəʊʒə) /

noun

photog
  1. inadequate exposure to light
  2. an underexposed negative, print, or transparency
insufficient attention or publicity