Ad hoc
Ad hoc adverb - For one specific case.
When needed and ad hoc are semantically related. in for present purposes topic. In some cases you can use "When needed" instead an adverb phrase "Ad hoc", when it comes to topics like as the need arises.
When needed
Ad hoc and when needed are semantically related. Sometimes you can replace phrase "Ad hoc" with "When needed", this phrases are similar.
Mutual synonyms
Cite this Source
When needed and Ad hoc. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/ad_hoc/when_needed
Ad hoc & When needed. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/ad_hoc/when_needed>.
When needed or Ad hoc. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/ad_hoc/when_needed.
Google Ngram Viewer shows how "ad hoc" and "when needed" have occurred on timeline