What does unseasonable mean?
Unseasonable is an adjective meaning not typical or appropriate for the season, most often used of weather that departs strikingly from normal seasonal conditions. A warm spell in January, unexpected snow in spring, or an early heatwave can all be described as unseasonable. The word can also apply more figuratively to behaviour or events that seem oddly mistimed, although this use is less frequent and can sound somewhat formal. Unseasonable combines the negative prefix un- with the older word seasonable, meaning suitable for the season. It is related in meaning to out-of-season, untimely, and inopportune, while its opposite is seasonable. The term is useful because it identifies not merely a deviation from what is ordinary, but a mismatch between something and the season in which it occurs. It is especially common in descriptions of unusual weather and seasonal conditions in both British and American English.
adjectiveNot usual, suitable, or appropriate for the time of year, especially in reference to weather. It can also describe behaviour, activities, or events that are out of keeping with the season or the expected circumstances.
- Not typical, suitable, or expected for a particular season of the year, especially of weather.
- Not appropriate or natural for the time or circumstances, especially of behaviour or activities.
"After a week of unseasonable warmth, the garden began to bloom unusually early."
"The unseasonable frost damaged several of the garden's early flowers."
"Her unseasonable enthusiasm for winter sports surprised everyone at the beach club."
Sometimes the forecast is not merely wrong: it is genuinely out of season, turning a warm February or a snowstorm in April into the word unseasonable.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unseasonable come from?
Unseasonable is a native English formation built from un-, meaning not, and seasonable, meaning suitable for the season. The adjective seasonable itself belongs to the family of season, seasonal, and seasons, with the suffix -able expressing suitability or capability. The noun season comes through Old French from Latin, while the modern negative formation emerged as a natural way of describing conditions that did not match the expected time of year.
Related word forms
How unseasonable is actually used
The word is most commonly used in reference to weather and seasonal conditions, but it can be applied more broadly to anything occurring at an inappropriate or unexpected time. It has a slightly literary or formal tone, although it is fully understood in everyday British and American English.
Easily confused with unseasonable
Unseasonable is the more established and natural term for something atypical of its season, whereas unseasonal is less common and can sound more formal or technical.
Unseasonable specifically suggests that something does not fit the usual season or time of year, while unusual refers broadly to anything that is not common.