Extra
Extra adjective - Added to a regular schedule.
Unscheduled and extra are semantically related. In some cases you can use "Unscheduled" instead an adjective "Extra".
Unscheduled
Unscheduled adjective - Not scheduled or not on a regular schedule.
Usage example: an unscheduled meeting
Extra and unscheduled are semantically related. You can use "Extra" instead an adjective "Unscheduled".
Mutual synonyms
Cite this Source
Unscheduled and Extra. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/extra/unscheduled
Extra & Unscheduled. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/extra/unscheduled>.
Unscheduled or Extra. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/extra/unscheduled.
Google Ngram Viewer shows how "extra" and "unscheduled" have occurred on timeline