periodic

[peer-ee-od-ik] / ˌpɪər iˈɒd ɪk /

ADJECTIVE

at fixed intervals

Synonyms

STRONGEST

annual intermittent monthly occasional recurrent recurring regular repeated routine seasonal sporadic weekly yearly

STRONG

periodical

WEAK

alternate at various times centennial cyclic cyclical daily epochal every once in a while every so often fluctuating hourly infrequent isochronal isochronous on certain occasions on-again-off-again orbital perennial rhythmic serial spasmodic

Antonyms

STRONGEST

constant infrequent unusual

WEAK

continual irregular lasting permanent sporadic variable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Granted, rebalancing is one of those periodic chores that’s easy to neglect, like dusting your refrigerator coils.

From Barron's • May 28, 2026

The periodic table supposedly came to Dmitri Mendeleev in a dream.

From The Wall Street Journal • May 13, 2026

This property is one reason the periodic table contains so many different elements.

From Science Daily • May 9, 2026

One simple solution could be to ask your landlord for periodic payments.

From MarketWatch • May 5, 2026

But periodic attempts to discipline bribe takers, restrict market activities, force servi-cha vehicles off the road, and confiscate cash were met with widespread resistance.

From "Escape from Camp 14: One Man's Remarkable Odyssey from North Korea to Freedom in the West" by Blaine Harden

Vocabulary lists containing periodic

Freak the Mighty

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Word Generation Science - Introductory Chemistry Concepts

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Essential English Vocabulary, List 3

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