Home › Words › U › underlightunderlightunderlight means illumination from underneath.Among words judged in Lexicurio's Arena, underlight ranks #3,412 of 42,747 for Qualifying.EtymologyFrom under- + light.nounIllumination from underneath.e.g.“But there are some minor underlights beneath the high arm and on the left of the face; these are reflected lights that bounce off nearby parts of the figure itself.” — 1981, Burne Hogarth, Dynamic Light and Shade, page 43:A highlight in an underlayer of a person's hair.Definitions & examples from Wiktionary (CC BY-SA 3.0).