Incumbent and Optional
Opposite meaning words
Incumbent
Incumbent adjective - Forcing one's compliance or participation by or as if by law.
Usage example: it is incumbent upon you to attend every staff meeting
Nearby Word: incumbency
Optional
Cite this Source
Optional and Incumbent. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/incumbent/optional
Incumbent & Optional. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/incumbent/optional>.
Optional or Incumbent. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/incumbent/optional.
Google Ngram Viewer shows how "incumbent" and "optional" have occurred on timeline