Ad hoc and Unscheduled

Ad hoc

Ad hoc adjective - Made or done without previous thought or preparation.

Unscheduled and ad hoc are semantically related. In some cases you can use "Unscheduled" instead an adjective phrase "Ad hoc".

Unscheduled

Unscheduled adjective - Not scheduled or not on a regular schedule.

Ad hoc and unscheduled are semantically related. You can use "Ad hoc" instead an adjective "Unscheduled".
Cite this Source
Unscheduled and Ad hoc. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/ad_hoc/unscheduled
Ad hoc & Unscheduled. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/ad_hoc/unscheduled>.
Unscheduled or Ad hoc. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/ad_hoc/unscheduled.
Google Ngram Viewer shows how "ad hoc" and "unscheduled" have occurred on timeline