Incidental and Important
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
Important
Important adjective - Having great meaning or lasting effect.
Incidental is an antonym for important.
Cite this Source
Important and Incidental. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/incidental/important
Incidental & Important. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/incidental/important>.
Important or Incidental. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/incidental/important.
Google Ngram Viewer shows how "incidental" and "important" have occurred on timeline