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unexpected

unanticipated / sudden

/ʌnɪkˈspɛktɪd/

Adjective
comp: more unexpectedsup: most unexpected

Describes something that occurs without prior warning, anticipation, or preparation. It captures the feeling of a sudden disruption to a predicted pattern or timeline. While "surprising" often implies an emotional reaction (shock or delight), "unexpected" is more neutral and descriptive of the event's occurrence relative to expectation. It can be positive (an unexpected gift) or negative (an unexpected expense). In formal contexts, it often serves as a polite euphemism for something unplanned or inconvenient. In casual speech, it suggests a twist of fate or a random coincidence.

💬Casual Conversation

🎬Commander Tom's spartan quarters on the desolate Martian outpost, during a routine comms check.
Xylar

Your recent supply intake log indicates an unexpected payload.

Xylar
Commander Tom
Commander Tom

Unexpected? I was counting on that care package. What a kick in the teeth.

💡
Xylar, the alien bureaucrat, uses formal language to inform Commander Tom about an unauthorized item. Tom, the homesick astronaut, reacts with disappointment, using the idiom 'a kick in the teeth' to express his feeling of being unfairly treated or let down, as he was hoping for a personal delivery.

Meanings

Adjectiveunanticipated

Not anticipated or predicted.

"The news of his resignation was completely unexpected."

Adjectivesudden

Happening or occurring without prior warning or planning.

"They took an unexpected detour through the mountains."

Collocations & Compounds

unexpected guest

A person who arrives without being invited or announced.

We had an unexpected guest for dinner last night.

unexpected turn of events

A sudden and surprising change in a situation.

The unexpected turn of events left everyone speechless.

unexpected result

A conclusion or outcome that was not anticipated.

The experiment produced an unexpected result.

unexpected expense

A cost that was not planned for.

An unexpected expense can disrupt a budget.

unexpected delay

A postponement that was not foreseen.

We experienced an unexpected delay due to bad weather.

Idioms & Sayings

from an unexpected quarter

From a source or direction that was not anticipated.

The support came from an unexpected quarter.

Etymology

The word 'unexpected' is derived from the Latin prefix 'un-' (meaning 'not') combined with the verb 'expectare' (meaning 'to await, look for, expect'). It entered Middle English in the 15th century. Initially, it was used in a more literal sense of something not being looked for or anticipated.

Related Words

Last Updated: June 9, 2026Report an Error