unscheduled

adjective

un·​sched·​uled ˌən-ˈske-(ˌ)jüld How to pronounce unscheduled (audio)
-jəld,
 Canadian also  -ˈshe-,
 British usually  -ˈshe-(ˌ)dyüld
: not appointed, assigned, or designated for a fixed time : not scheduled
made an unscheduled stop
unscheduled visits

Examples of unscheduled in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The rapid unscheduled disassembly (aka explosion) of SpaceX's Starship megarocket that rained scorching fragments of metal across the Caribbean in mid-January may have released significant amounts of harmful air-pollution into the upper layers of Earth's atmosphere. Tereza Pultarova, Space.com, 2 Feb. 2025 Who keeps in touch with so many long-distance friends through unscheduled calls? Bill Addison, Los Angeles Times, 1 Feb. 2025 Initial data indicates a fire developed in the aft section of the ship, leading to a rapid unscheduled disassembly. William Harwood, CBS News, 17 Jan. 2025 The first stage performed well, but the Starship upper stage experienced a rapid unscheduled disassembly during its ascent. Ars Technica, 17 Jan. 2025 See all Example Sentences for unscheduled 

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of unscheduled was in 1889

Dictionary Entries Near unscheduled

Cite this Entry

“Unscheduled.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unscheduled. Accessed 22 Feb. 2025.

More from Merriam-Webster on unscheduled

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!