Flat
Flat adjective - Lacking in taste or flavor.
Usage example: this pasta dish tastes a little flat
Unflavored and flat are semantically related. In some cases you can use "Unflavored" instead an adjective "Flat".
Unflavored
Cite this Source
Unflavored and Flat. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/flat/unflavored
Flat & Unflavored. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/flat/unflavored>.
Unflavored or Flat. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/flat/unflavored.
Google Ngram Viewer shows how "flat" and "unflavored" have occurred on timeline