Posted on July 2, 2015 by dimitriA Photo a day (297 of 365) un·der·ex·pose (ŭn′dər-ĭk-spōz′)tr.v. un·der·ex·posed, un·der·ex·pos·ing, un·der·ex·pos·esTo expose (film) to light for too short a time or to light or radiation that is insufficient to produce normal image contrast.