seasonality: meaning, definition, pronunciation and examples

C1/C2
UK/ˌsiː.zənˈæl.ə.ti/US/ˌsiː.zənˈæl.ə.t̬i/

Formal / Technical

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Quick answer

What does “seasonality” mean?

The characteristic of being dependent on or varying with the seasons, or occurring at a specific, regular time each year.

Audio

Pronunciation

Definition

Meaning and Definition

The characteristic of being dependent on or varying with the seasons, or occurring at a specific, regular time each year.

A pattern or predictable fluctuation in data, demand, behavior, or biological processes that recurs on an annual (or other seasonal) cycle. Used in economics, ecology, tourism, retail, and medicine.

Dialectal Variation

British vs American Usage

Differences

No significant difference in meaning or spelling. Usage is equally common in technical/business contexts in both varieties.

Connotations

Neutral/technical term in both. Slightly more frequent in UK English in ecological contexts; slightly more frequent in US English in business/finance contexts.

Frequency

Comparable frequency in both varieties within specialised domains; rare in everyday casual speech.

Grammar

How to Use “seasonality” in a Sentence

The [noun] exhibits/show seasonality.We must adjust/account for the seasonality in the [noun].The analysis revealed a strong seasonality effect.

Vocabulary

Collocations

strong
strong seasonalitypronounced seasonalityexhibit seasonalityadjust for seasonalityaccount for seasonality
medium
sales seasonalitytourism seasonalityeconomic seasonalitypattern of seasonalityeffects of seasonality
weak
obvious seasonalityinherent seasonalitypredictable seasonalitymeasure seasonality

Examples

Examples of “seasonality” in a Sentence

verb

British English

  • The data needs to be seasonally adjusted.
  • Visitor numbers seasonally peak in July.

American English

  • The figures have been seasonally adjusted.
  • Traffic seasonally increases around the holidays.

adverb

British English

  • Employment varies seasonally.
  • The fruits are only available seasonally.

American English

  • Prices fluctuate seasonally.
  • The restaurant operates seasonally.

adjective

British English

  • We observed a strong seasonal pattern.
  • The company hires seasonal workers.

American English

  • There is a clear seasonal trend.
  • She took a seasonal job at the ski resort.

Usage

Meaning in Context

Business

Refers to predictable changes in sales, employment, or prices linked to seasons or holidays (e.g., retail Christmas peak).

Academic

Used in economics, climatology, ecology, epidemiology to describe data patterns recurring annually.

Everyday

Rare in casual conversation. Might be used when discussing holiday travel prices or seasonal jobs.

Technical

A key statistical concept; data is 'deseasonalized' to reveal underlying trends.

Vocabulary

Synonyms of “seasonality”

Strong

annual cycleperiodic fluctuationrecurring pattern

Neutral

seasonal variationseasonal patternseasonal fluctuation

Weak

seasonal changeseasonal influencetime-of-year effect

Vocabulary

Antonyms of “seasonality”

stabilityconsistencyuniformitynon-seasonalitytrend (in analytical contexts)

Watch out

Common Mistakes When Using “seasonality”

  • Incorrect pluralisation ('seasonalities') is rare and generally discouraged. It's a mass noun.
  • Mispronunciation: stressing the first syllable (SEA-sonality) instead of the third (sea-son-AL-ity).

FAQ

Frequently Asked Questions

No. Weather is short-term atmospheric conditions. Seasonality refers to predictable, recurring annual patterns or fluctuations, which can be influenced by weather but also by holidays, school terms, or biological cycles.

Typically, no. The term is intrinsically tied to the four-season/annual cycle. For monthly, weekly, or daily recurring patterns, terms like 'periodicity', 'cyclicality', or specific terms like 'diurnal rhythm' are used.

A trend shows a long-term, directional movement (upward or downward) over years. Seasonality is a shorter, repeating pattern within a single year that recurs annually. In data analysis, seasonality is often removed to see the true trend.

It is generally treated as an uncountable/mass noun. We say "exhibit seasonality," not "exhibit a seasonality." However, in very technical statistical writing, you might encounter "a strong seasonality," but this is less common.

The characteristic of being dependent on or varying with the seasons, or occurring at a specific, regular time each year.

Seasonality is usually formal / technical in register.

Seasonality: in British English it is pronounced /ˌsiː.zənˈæl.ə.ti/, and in American English it is pronounced /ˌsiː.zənˈæl.ə.t̬i/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • [No common idioms for this noun.]

Learning

Memory Aids

Mnemonic

Think: SEASON-ALITY. It's the 'quality' or 'characteristic' (the -ity) of something being tied to the SEASON.

Conceptual Metaphor

TIME IS A CYCLE (repeating pattern); NATURAL/ECONOMIC PROCESSES ARE TIDES (predictable ebb and flow).

Practice

Quiz

Fill in the gap
Before comparing quarterly revenues, investors must first to get a true picture of performance.
Multiple Choice

In which context is the term 'seasonality' LEAST likely to be used appropriately?