diurnal Synonyms

circadian day daytime daylight daily semestral semiannual yearly triweekly triennial tertian semimonthly regular quotidian during the day occurring every day in daylight occurring each day perpetual periodic abiding cyclical common centennial centenary catamenial book biweekly bimonthly biennial decennial equidiurnal everyday monthly momently missal menstrual hourly hebdomadary hebdomadal half-hourly fortnightly ferial annual