Antonym?

[pegkerr]

What is the antonym of crepuscular? Is it matinal?

Edited to add: I learned the word in reference to rabbits, and I'd heard the definition as "most active at twilight." I'm hunting for a word for Ingrid, indicating she's active and alert very early in the morning, what many people would refer to as a "lark." Solveig, who is not a morning person, would jokingly refer to herself, in contrast, as crepuscular--although that wouldn't fit if crepuscular means active at twilight and dawn.

Comments

[callunav.livejournal.com]

On the other hand, maybe we're not talking about animal habits. In which case, crepescule being the french word for twilight (and isn't that a dreadful-sounding word for something so pretty? Though I've been fonder of it since reading The Swimming Pool Library in which there is a restaurant called "Le Crepescule des Dietés," which is the French translation for Gotterdamerung, and too silly to hold hard feelings against) so we could invent, say aubeal for 'of or pertaining to the dawn.' (Aube is French for dawn.)

I'm all in favor of inventing words whenever called for.

Or perhaps the antonym would be, say, 'crespescule-evitant(s):' avoiding dusk. The possibilities are endless!

(You were talking about animals, weren't you?)