Expeditive
Posthaste and expeditive are semantically related. in fast topic. In some cases you can use "Posthaste" instead an adjective "Expeditive", when it comes to topics like speedy.
Posthaste
Posthaste adverb - With great speed.
Expeditive and posthaste are semantically related. You can use "Expeditive" instead an adjective "Posthaste".
Mutual synonyms
Related pairs
Cite this Source
Posthaste and Expeditive. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/expeditive/posthaste
Expeditive & Posthaste. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/expeditive/posthaste>.
Posthaste or Expeditive. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/expeditive/posthaste.
Google Ngram Viewer shows how "expeditive" and "posthaste" have occurred on timeline