Word Type

Adjective

Adjective

The word "periodic" can be used as adjective and adjective.

Word Relationships

Opposites (Antonyms)

aperiodic

Derived Terms

antiperiodic aperiodic biperiodic diperiodic equiperiodic extraperiodic isoperiodic metaperiodic monoperiodic multiperiodic nonperiodic omniperiodic orthoperiodic periodate periodic acid periodic classification periodic comet periodic continued fraction periodic function periodic inequality periodic inventory periodic law periodic month periodic structure periodic system periodic table periodically periodicize photoperiodic preperiodic pseudoperiodic quasi-periodic quasiperiodic semiperiodic subperiodic superperiodic thermoperiodic uniperiodic unperiodic

Derived From

iodic

Context

astronomy mathematics rhetoric stochastic processes

Broader Terms (Hypernyms)

discontinuous orderly repetitive

Narrower Terms (Hyponyms)

In terms of centuries: In terms of days: In terms of hours: In terms of months: In terms of weeks: In terms of years: Other: annual biannual bicentennial bidaily biennary biennial bihourly bimensal bimestrial bimonthly biweekly centennial circadian circaseptan circhoral daily diurnal fortnightly half-hourly half-monthly half-yearly hebdomadal hebdomadary horary hourly hourwise mensal menstrual menstruous monthly monthlyish multicentennial pentennial per diem quadrennial quarter-hourly quarterly quinquennial quintennial quotidian seasonal secular semestral semi-daily semi-weekly semiannual semicentennial semidiurnal semihourly semimenstrual semimonthly sesquicentennial subhourly submonthly tertian thrice-monthly tricentennial tridaily triennial trieterical trimestral trimonthly twi-weekly twice-weekly twice-yearly two-hourly weekly weeklyish yearly

Related Terms

catamenial period periodicity

Related Terms

celestial cycle interval iodine orbit oxidation state period periodic acid periodic sentence periodical regular relative repeat revolution

Similar Terms

annual annual biannual biennial biennial bimestrial bimonthly bimonthly biweekly biyearly cyclic cyclic daily daily day-after-day day-by-day day-to-day diurnal diurnal fortnightly fortnightly half hourly half-hourly half-yearly hebdomadal hebdomadary hourly hourly midweek midweekly monthly monthly nightly nightly oscillating oscillating oscillatory semestral semestral semestrial semiannual semiannual semimonthly semimonthly semiweekly semiweekly sporadic triennial triennial weekly weekly yearly

Synonym Network

occasional

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.