Substantial and Ungrounded

Opposite meaning words

Substantial adjective - Having great meaning or lasting effect.

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Ungrounded is an antonym for substantial.

Definitions of Substantial not found.

Substantial is an antonym for ungrounded in unconvincing topic.

Cite this Source

Ungrounded and Substantial. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/substantial/ungrounded

Substantial & Ungrounded. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/substantial/ungrounded>.

Ungrounded or Substantial. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/substantial/ungrounded.

Google Ngram Viewer shows how "substantial" and "ungrounded" have occurred on timeline