Impromptu and Unbidden

Impromptu

Impromptu adjective - Made or done without previous thought or preparation.

Unbidden and impromptu are semantically related In some cases you can use "Unbidden" instead an adjective "Impromptu".

Unbidden

Unbidden adjective - Not searched or asked for.

Impromptu and unbidden are semantically related in impulsive topic. Sometimes you can use "Impromptu" instead an adjective "Unbidden".
Cite this Source
Unbidden and Impromptu. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/impromptu/unbidden
Impromptu & Unbidden. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/impromptu/unbidden>.
Unbidden or Impromptu. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/impromptu/unbidden.
Google Ngram Viewer shows how "impromptu" and "unbidden" have occurred on timeline