Incidental and Momentous

Opposite meaning words

Incidental adjective - Lacking importance.

Usage example: we still have to work out a few incidental details, but the proposal is largely complete

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Momentous is an antonym for incidental.

Nearby Words: incident, incidence, incidentally

Momentous adjective - Having great meaning or lasting effect.

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Incidental is an antonym for momentous.

Nearby Words: moment, momentum, momentously

Cite this Source

Momentous and Incidental. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/incidental/momentous

Incidental & Momentous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/incidental/momentous>.

Momentous or Incidental. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/incidental/momentous.

Google Ngram Viewer shows how "incidental" and "momentous" have occurred on timeline