unseasonable

adjective

un·​sea·​son·​able

ˌən-ˈsēz-nə-bəl, 

-ˈsē-zᵊn-ə- 

1

: occurring at other than the proper time : untimely

… she made several excursions over to Canterbury to see me, and always at unseasonable hours …

—Charles Dickens

2

: not being in season

3

a

: not normal for the season of the year

unseasonable weather

b

: marked by unseasonable weather

an unseasonable summer

unseasonableness noun

unseasonably

ˌən-ˈsēz-nə-blē, 

-ˈsē-zᵊn-ə- 

adverb

Synonyms of unseasonable

• early
• unexpected
• sudden
• untimely
• premature
• precocious
• inopportune

Examples of unseasonable in a Sentence

an unseasonable snowstorm in early November

Recent Examples on the Web

The continental United States logged its most abnormally hot March in 132 years of records, and Europe has seen unseasonable highs near 104 degrees. — Hanna Wickes, Fort Worth Star-Telegram, 1 July 2026

Starting mid-June, Europe has baked under unseasonable highs of around 40 degrees Celsius (104 Fahrenheit) in many places due to a heat dome. — Alexa St. John, Fortune, 30 June 2026

Yang blamed the unseasonable weather on the Gulf of Alaska. — Sally Krutzig, Idaho Statesman, 23 June 2026

For potted geraniums, consider bringing them indoors if an unseasonable chilly night is forecasted. — Andy Wilcox, Better Homes & Gardens, 21 June 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for unseasonable

• reasonable
• seasonable
• treasonable

Kids Definition

unseasonable

adjective

un·​sea·​son·​able ˌən-ˈsēz-nə-bəl 

-ˈsēz-ᵊn-ə-

1

: happening or coming at the wrong time : untimely

an unseasonable visit

2

: not normal for the season of the year

unseasonable weather

unseasonably

-blē 

adverb