Automatic and Impromptu

Automatic

Automatic adjective - Done instantly and without conscious thought or decision.
Usage example: Carl's automatic use of the brakes narrowly averted a collision

Impromptu and automatic are semantically related. In some cases you can use "Impromptu" instead an adjective "Automatic".

Impromptu

Impromptu adjective - Made or done without previous thought or preparation.
Usage example: our dinner guest thanked us with an impromptu song

Automatic and impromptu are semantically related. Sometimes you can use "Automatic" instead an adjective "Impromptu".

Both words in one sentence

  • Recoil Boost On the Killing Floor map Moonbase, the low gravity allows for all shotguns to provide faster movement and, if the player has an automatic shotgun, an impromptu jet pack, if they are fired while the character is in the air.
    Source: Recoil Boost
Cite this Source
Impromptu and Automatic. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/automatic/impromptu
Automatic & Impromptu. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/automatic/impromptu>.
Impromptu or Automatic. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/automatic/impromptu.
Google Ngram Viewer shows how "automatic" and "impromptu" have occurred on timeline