Impromptu and Simulated

Impromptu

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

Simulated is an antonym for impromptu.

Simulated

Simulated adjective - Lacking in natural or spontaneous quality.
Usage example: the simulated friendliness in public of two politicians who can't stand each other in private

Impromptu is an antonym for simulated.

Cite this Source
Simulated and Impromptu. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/impromptu/simulated
Impromptu & Simulated. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/impromptu/simulated>.
Simulated or Impromptu. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/impromptu/simulated.
Google Ngram Viewer shows how "impromptu" and "simulated" have occurred on timeline