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.

It requires periodic delimitation - the redrawing and reallocation of seats - after each census to reflect updated population figures.

From BBC • Apr. 16, 2026

Commissioners perform periodic examinations of insurer portfolios and rely heavily on credit ratings.

From The Wall Street Journal • Apr. 8, 2026

While we all need periodic reminders that pierce through the monotony and horrors of the day, awe of nature and our fragile existence being paramount, we also need reminders that a better future is possible.

From Salon • Apr. 7, 2026

Bouma, working with Moira Jardine of the University of St Andrews, focused on an unusual class of M dwarfs known as complex periodic variables.

From Science Daily • Mar. 27, 2026

Because there were a few cases of tuberculosis in the prison, everyone had to get a periodic chest X-ray.

From "Hole in My Life" by Jack Gantos

Vocabulary lists containing periodic

Freak the Mighty

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Essential English Vocabulary, List 3

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