Incidental and Material
Opposite meaning words
Incidental
Incidental adjective - Lacking importance.
Usage example: we still have to work out a few incidental details, but the proposal is largely complete
Material is an antonym for incidental.
Material
Cite this Source
Material and Incidental. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/incidental/material
Incidental & Material. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/incidental/material>.
Material or Incidental. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/incidental/material.
Google Ngram Viewer shows how "incidental" and "material" have occurred on timeline