adjective

impromptu

impromptu, unrehearsed, spontaneous

He gave an impromptu speech at the wedding.

He gave an impromptu speech at the wedding.

She decided to hold an impromptu party.

She decided to hold an impromptu party.

an impromptu ((noun)) done without being planned He gave an impromptu speech.

((verb)) impromptu (adverb) without being planned She sang the song impromptu.

Synonyms: spontaneous, unrehearsed, unplanned; Antonyms: planned, rehearsed, prepared

From Latin 'in promptu', meaning 'in readiness'. It's related to the word 'prompt'.

Think of it as being 'in prompt' readiness to do something without preparation. This connects to its meaning of being spontaneous.

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