seasonality

American  

[see-zuh-nal-i-tee] / ˌsi zəˈnæl ɪ ti /

noun

plural

seasonalities

1. the state or quality of being seasonal or dependent on the seasons.

   the seasonality of Halloween costumes.

2. Usually seasonalities a pattern, variation, or fluctuation that is correlated with a season, day of the week, or other period of time.

   a study of birth seasonalities;

   You get higher returns in January because of seasonalities in stock prices.

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Etymology

Origin of seasonality

First recorded in 1900–05; seasonal ( def. ) + -ity ( def. )

Example Sentences

It’s expected to deliver softer mining earnings, noting that the Indonesian conglomerate’s March auto sales fell on year from holiday-related seasonality and still-weak purchasing power, she says.

From The Wall Street Journal • Apr. 13, 2026

She added that spending money on food and long-term rent helps mitigate the seasonality of tourism, bringing consistent revenue to local businesses.

From BBC • Apr. 6, 2026

One caveat that investors should be aware of: April marks the end of the six-month period that is believed to have positive seasonality for stocks.

From MarketWatch • Apr. 1, 2026

If goods prices did jump last month, tariffs and residual seasonality aren’t mutually exclusive explanations.

From The Wall Street Journal • Feb. 9, 2026

Adaptive relicts of morphological nature have been many times documented, but characteristics associated with seasonality and timing schedules have not.

From The Breeding Birds of Kansas by Johnston, Richard F.