Compulsory
Compulsory adjective - Forcing one's compliance or participation by or as if by law.
Principal and compulsory are semantically related. In some cases you can use "Principal" instead an adjective "Compulsory".
Nearby Words: compulsion, compulsive
Principal
Principal adjective - Coming before all others in importance.
Compulsory and principal are semantically related. Sometimes you can use "Compulsory" instead an adjective "Principal".
Both words in one sentence
- History is now compulsory for all Party Horses, although Principal Party Horse somehow believes that partying without a clear knowledge of the history of a country on a planet very far away is somehow deficient.
Source: Voodoo Shark
Cite this Source
Principal and Compulsory. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/compulsory/principal
Compulsory & Principal. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/compulsory/principal>.
Principal or Compulsory. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/compulsory/principal.
Google Ngram Viewer shows how "compulsory" and "principal" have occurred on timeline