Formal and Indecorous

Opposite meaning words

Formal adjective - Following or agreeing with established form, custom, or rules.

Usage example: a formal contract that was legally binding

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Indecorous is an antonym for formal.

Indecorous adjective - Not appropriate for a particular occasion or situation.

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Formal is an antonym for indecorous.

Cite this Source

Indecorous and Formal. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/formal/indecorous

Formal & Indecorous. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/formal/indecorous>.

Indecorous or Formal. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/formal/indecorous.

Google Ngram Viewer shows how "formal" and "indecorous" have occurred on timeline