A really fast thesaurus... with lots of synonyms.
We don't have synonyms for inpromptu yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are impromptu and imprompt.
We don't have any synonyms for inpromptu yet.
Think inpromptu belongs in the thesaurus? Recommend it and we'll take a look.