Strong and Unfounded

Opposite meaning words

Strong adjective - Having the power to persuade.

Usage example: made a strong argument for starting school an hour later each day

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Unfounded is an antonym for strong.

Nearby Word: strongly

Unfounded adjective - Having no basis in reason or fact.

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Strong is an antonym for unfounded.

Nearby Word: unfoundedly

Cite this Source

Unfounded and Strong. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/strong/unfounded

Strong & Unfounded. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/strong/unfounded>.

Unfounded or Strong. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/strong/unfounded.

Google Ngram Viewer shows how "strong" and "unfounded" have occurred on timeline