alternate, annalistic, beating, calendarial, calendric, chronogrammatic, chronographic, chronologic, chronoscopic, circling, cyclic, dated, diaristic, epochal, even, every other, horologic, intercalary, intercalated, intermittent, isochronal, measured, oscillatory, periodical, pulsing, reciprocal, recurrent, recurring, rhythmic, rotary, seasonal, serial, steady, temporal, timekeeping, undulant, undulatory, wavelike, wheeling