Informal and Proper

Informal

Informal adjective - Not rigidly following established form, custom, or rules.
Usage example: an informal meeting allowed everyone to get acquainted

Proper is an antonym for informal.

Proper

Proper adjective - Following the established traditions of refined society and good taste.
Usage example: the formal ball called for proper attire—tuxedos and full-length gowns only

Informal is an antonym for proper.

Nearby Words: property, properly

Both words in one sentence

  • Video Game / Indiana Jones and the Fate of Atlantis Given the reluctance of Steven Spielberg and George Lucas to confirm a proper Indy sequel following The Last Crusade, many fans came to refer to this game by the informal title Indiana Jones 4.
  • For those confused: Buffalo is a city (proper noun), an informal name for the American Bison (noun), and synonym for bully (verb).
  • Main cast has much of informal moments, including the stretching of proper procedures regarding witness interrogation and dealing with minor criminals.
Cite this Source
Proper and Informal. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/informal/proper
Informal & Proper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/informal/proper>.
Proper or Informal. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/informal/proper.
Google Ngram Viewer shows how "informal" and "proper" have occurred on timeline