Inofficial
Informal and inofficial are semantically related. In some cases you can use "Informal" instead an adjective "Inofficial".
Informal
Informal adjective - Not rigidly following established form, custom, or rules.
Inofficial and informal are semantically related. You can use "Inofficial" instead an adjective "Informal".
Mutual synonyms
Cite this Source
Informal and Inofficial. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/inofficial/informal
Inofficial & Informal. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/inofficial/informal>.
Informal or Inofficial. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/inofficial/informal.
Google Ngram Viewer shows how "inofficial" and "informal" have occurred on timeline