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Synonyms

unexpected

American  
[uhn-ik-spek-tid] / ˌʌn ɪkˈspɛk tɪd /

adjective

  1. not expected; unforeseen; surprising.

    an unexpected pleasure;

    an unexpected development.


unexpected British  
/ ˌʌnɪkˈspɛktɪd /

adjective

  1. surprising or unforeseen

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See sudden.

Other Word Forms

Etymology

Origin of unexpected

First recorded in 1580–90; un- 1 + expect + -ed 2

Explanation

Use the adjective unexpected to describe something that takes you by surprise. An unexpected knock on your front door might make you jump. When you don't anticipate something, and have no clue that it's coming, you can call it unexpected. A successful surprise party is always unexpected, and an unexpected visitor can be exciting or inconvenient, depending on who it is. If you expect an event, you know it's going to occur, but if it's unexpected, it seems to come from nowhere. The Latin root is expectare, "await, look out for, desire, or hope."

Keep Reading on Vocabulary.com

Vocabulary lists containing unexpected

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.

See Examples For:

Chief executive Pascal Soriot said the company was "on track" to deliver its ambition of $80 billion in total revenue by 2030, despite an unexpected late-stage trial failure earlier this month.

From Barron's Jul. 27, 2026

They suffer unexpected and debilitating health events, often through no fault of their own, and end up under a mountain of medical bills — health-related issues are still the No. 1 cause of bankruptcy.

From MarketWatch Jul. 23, 2026

From sticking out his tongue on the big screen to wildly cheering on his older brother, Kenye has been hailed by fans as one of the unexpected breakout stars of the 2026 tournament.

From BBC Jul. 20, 2026

“You’re not going to turn a corner and have that unexpected magical experience.”

From The Wall Street Journal Jul. 20, 2026

This unexpected compliment threw Penelope for a loop.

From "The Hidden Gallery" by Maryrose Wood

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