- The definition of crepuscular is dim, or active during the twilight hours.
An example of something crepuscular is a room with little light.
- of or like twilight; dim
- active at twilight or just before sunrise: crepuscular insects
Origin of crepuscularsee crepuscule
- Of or like twilight; dim: “the period's crepuscular charm and a waning of the intense francophilia that used to shape the art market” (Wall Street Journal).
- a. Active primarily at dawn or dusk or both. Used of animals.b. Occurring at dawn or dusk or both: crepuscular foraging; a crepuscular stroll through the park.
(comparative more crepuscular, superlative most crepuscular)