crepuscular

cre·pus·cu·lar  (kr-psky-lr)

adj.

1. 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).

2. Zoology Becoming active at twilight or before sunrise, as do bats and certain insects and birds.

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crepuscular

Adjective

1. of or like twilight

2. (of animals) active at twilight [Latin crepusculum dusk]

Thesaurus

Adj.

1.

crepuscular - like twilight; dim; "the evening's crepuscular charm" dark - devoid of or deficient in light or brightness; shadowed or black; "sitting in a dark corner"; "a dark day"; "dark shadows"; "dark as the inside of a black cat"