unscheduled

USAGE SUMMARY

The phrase "unscheduled" is correct and usable in written English.
It can be used to describe something that is not planned or arranged in advance, often referring to events or appointments. Example: "The meeting was unscheduled, catching everyone off guard."

✓ Grammatically correct

News & Media

Encyclopedias

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Freezing rain prompted the federal government to allow workers to arrive up to two hours later than normal on Monday, or take unscheduled leave.

The Guardian

England's captain is – after 93 days, 13 domestic flights, three unscheduled farewells, 1,186 balls faced in the middle and not a single meaningful victory in sight – finally going home.

The Guardian - Sport

I hope you've managed to avoid an unscheduled confrontation with how this story ends.

The Guardian - TV & Radio

In an unscheduled announcement to the stock exchange, Barclays revealed the latest charge for "litigation and regulatory penalties" in its investment bank, where it is thought hundreds of jobs are on the line as part of a series of cost-cutting measures being prepared by the chief executive, Antony Jenkins.

The Guardian - Business

This week, however, drivers also endured an unscheduled bike-related disruption.

The Economist

Dissidents who so much as hold an unscheduled meeting are arrested on the spot.All this is making it hard for the opposition party, the Movement for Democratic Change (MDC), to contest the local elections which are to be held on September 28th and 29th.

The Economist

There were tales of pilots making unscheduled landings, leaving passengers stranded thousands of miles from their destination, or dashing off for a hamburger before take-off because they did not like the airline food.

The Economist

A hole in a corroded pipe can cause not only an unscheduled shutdown, with losses of millions of dollars a day, but also a grave risk to life, limb and the environment.Oil men, then, should welcome an invention by Peter Cawley and his colleagues in the non-destructive testing research group at Imperial College, London.

The Economist

These can be extremely expensive and are sometimes required without notice for unscheduled operations.

The Economist

Since the start of the year many towns and cities have suffered daily power cuts of two hours or more, as well as unscheduled blackouts that sometimes last several times as long.

The Economist

He paid an unscheduled visit to the south-western city of Kunming, to an army unit founded by his father, Bo Yibo.

The Economist

Expert writing Tips

Best practice

Place the adjective immediately before the noun it modifies (e.g., "an unscheduled visit") to ensure clarity.

Common error

Avoid using "unscheduled" to mean that a planned event has been stopped. While a cancelled event no longer exists on the timeline, an "unscheduled" event is one that occurs but was not originally on the timeline.

Linguistic Context

The word "unscheduled" functions primarily as an adjective. In the examples provided by Ludwig, it consistently modifies nouns related to events, stops, or transitions (e.g., "unscheduled leave", "unscheduled landings", "unscheduled meeting"). According to Ludwig AI, it follows standard morphological rules for negation using the prefix 'un-' attached to the past participle 'scheduled'.

Expression frequency: Very common

Frequent in

News & Media

75%

Formal & Business

15%

Encyclopedias

10%

Less common in

Science

5%

Social Media

3%

Wiki

2%

Ludwig's WRAP-UP

In summary, "unscheduled" is a robust and professionally versatile adjective used to describe events occurring outside of a planned timeframe. Data from Ludwig shows it is most frequently utilized in news reporting to discuss financial shifts, logistical diversions and spontaneous political meetings. Unlike its more informal synonyms like "random", it implies that while the event was not planned, it is nonetheless a formal occurrence. Ludwig AI confirms its status as a standard, correct term in English, widely recognized across high-authority publications like The Economist and The Guardian. When writing, ensure you distinguish it from cancellations to maintain precise meaning in your narrative.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

unplanned

The most direct and neutral synonym for something not intended in advance

impromptu

Suggests a spontaneous action taken without preparation

unannounced

Focuses specifically on the lack of prior notice or public declaration

spontaneous

Implies an action resulting from a sudden impulse rather than a schedule

ad hoc

Refers to something created or done for a particular purpose only, without prior planning

unexpected

Emphasizes the surprise factor rather than just the lack of a schedule

unforeseen

Describes something that was not anticipated or predicted beforehand

off-the-cuff

A more informal expression typically used for spoken remarks made without planning

extemporaneous

A formal term usually applied to speeches or performances done without notes

casual

Suggests a lack of formality or strict adherence to a routine

FAQs

How do I use unscheduled in a sentence?

You can use it to describe any event that happens without prior planning, such as: "The pilot had to make an "unscheduled" landing due to engine trouble." Alternatives include phrases like "unplanned" or "without notice".

What is the difference between unscheduled and unexpected?

While an "unscheduled" event is simply not on the calendar, an "unexpected" event is one that surprises the observer. An event can be "unscheduled" but still anticipated, such as a maintenance check that happens whenever a part wears out.

Is it correct to say not scheduled instead of unscheduled?

Yes, "not scheduled" is grammatically correct, but "unscheduled" is more concise and commonly preferred in professional writing and news media.

Can unscheduled be used for people?

It is rarely used to describe people directly; instead, it describes their actions or arrivals, such as an "unannounced arrival" or an "unscheduled" visit.