adjective
crepuscular
krih-PUS-kyuh-ler/krɪˈpʌskjələr/
Relating to twilight.
The rabbits feed in the crepuscular light along the meadow's edge.

Etymology
The pieces mean “pertaining to twilight.” In zoological use, this describes animals flying or appearing around sunset, connecting the time of dim light with their activity.
In context
Copperheads are primarily crepuscular and nocturnal during the warmer months, becoming more active in the evening and at night
More examples
- Deer often show crepuscular habits, feeding near dawn and dusk.
- The photographer captures the crepuscular glow just before sunrise.
- A crepuscular chill settles over the trail just after sunset.
Forms
crepuscular
Similar words
- twilight
- Twilight is the plainer choice when describing light or conditions.
- dusky
- Dusky emphasizes dimness rather than a connection to twilight.