Impromptu
Impromptu adjective - Made or done without previous thought or preparation.
Not disclosed and impromptu are semantically related. In some cases you can use "Not disclosed" instead an adjective "Impromptu".
Not disclosed
Impromptu and not disclosed are semantically related. You can use "Impromptu" instead an adjective phrase "Not disclosed".
Mutual synonyms
Cite this Source
Not disclosed and Impromptu. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/impromptu/not_disclosed
Impromptu & Not disclosed. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/impromptu/not_disclosed>.
Not disclosed or Impromptu. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/impromptu/not_disclosed.
Google Ngram Viewer shows how "impromptu" and "not disclosed" have occurred on timeline