hebdomadal (adjective) Taking place, coming together, publishing, or appearing once a week; weekly.
Arriving late to helveticka’s hebdomadal staff meeting, Aaron found his usual seat occupied by The New Guy, forcing him to sit between Skooch—who smelled of Red Bull and Cheddar Jalapeño Cheetos—and Courtney, whose otherwise winsome smile did little to hide her dark and sinister plans.