Thesaurus:impromptu
English
editAdjective
editSense: carried out with no preparation
editSynonyms
editVarious
editFurther reading
edit- “674. nonpreparation” in Roget's Thesaurus, T. Y. Crowell Co., 1911.
- “impromptu” in Moby Thesaurus II, Grady Ward, 1996.
- some of the synonyms at the Google Books Ngram Viewer.