underexpose

[ uhn-der-ik-spohz ]
/ ˌʌn dər ɪkˈspoʊz /

verb (used with object), un·der·ex·posed, un·der·ex·pos·ing.

to expose either to insufficient light or to sufficient light for too short a period, as in photography.

Origin of underexpose

First recorded in 1885–90; under- + expose

British Dictionary definitions for underexpose

underexpose
/ (ˌʌndərɪkˈspəʊz) /

verb (tr)

photog to expose (a film, plate, or paper) for too short a period or with insufficient light so as not to produce the required effect
(often passive) to fail to subject to appropriate or expected publicity