Informed and Unfounded

Informed

Informed adjective - Based on sound reasoning or information.
Usage example: the expert's informed opinion persuaded many fence-sitters to get a flu shot

Unfounded is an antonym for informed.

Unfounded

Unfounded adjective - Having no basis in reason or fact.
Usage example: the accusation proved to be unfounded

Informed is an antonym for unfounded.

Nearby Word: unfoundedly
Cite this Source
Unfounded and Informed. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/informed/unfounded
Informed & Unfounded. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/informed/unfounded>.
Unfounded or Informed. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/informed/unfounded.
Google Ngram Viewer shows how "informed" and "unfounded" have occurred on timeline