Synonyms of periodic

Adjective

1. periodic (vs. aperiodic), periodical, cyclic, oscillatory, oscillating, diurnal, daily, day-to-day, day-by-day, day-after-day, nightly, weekly, hebdomadal, hebdomadary, semiweekly, biweekly, hourly, half-hourly, fortnightly, biweekly, annual, yearly, semiannual, biannual, biyearly, half-yearly, biennial, biyearly, triennial, monthly, bimonthly, bimestrial, semimonthly, bimonthly, semestral, semestrial, midweekly

usage: happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"

2. periodic, occasional, sporadic (vs. continual)

usage: recurring or reappearing from time to time; "periodic feelings of anxiety"

Definition and meaning of periodic (Dictionary)