Informal and Unplanned

Informal

Informal adjective - Not rigidly following established form, custom, or rules.

Unplanned and informal are semantically related. In some cases you can use "Unplanned" instead an adjective "Informal".

Unplanned

Unplanned adjective - Made or done without previous thought or preparation.
Usage example: stumbled through a completely unplanned acceptance speech

Informal and unplanned are semantically related. Sometimes you can use "Informal" instead an adjective "Unplanned".
Cite this Source
Unplanned and Informal. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/informal/unplanned
Informal & Unplanned. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/informal/unplanned>.
Unplanned or Informal. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/informal/unplanned.
Google Ngram Viewer shows how "informal" and "unplanned" have occurred on timeline