Principal and Unknown

Opposite meaning words

Principal adjective - Coming before all others in importance.

Show all Definitions

Unknown is an antonym for principal in most important topic.

Nearby Words: principle, principally, principality, principe

Unknown adjective - Happening or existing without one's knowledge.

Show all Definitions

Principal is an antonym for unknown.

Nearby Words: unknowable, unknowing

With the unknown shoe as the only clue, he asks Einstein to find its owner.Marty follows Einstein to the apartment of the elderly Edna Strickland, a former reporter and Vice Principal Strickland's older sister.

Source: Recap / Back to the Future

Cite this Source

Unknown and Principal. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/principal/unknown

Principal & Unknown. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/principal/unknown>.

Unknown or Principal. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/principal/unknown.

Google Ngram Viewer shows how "principal" and "unknown" have occurred on timeline