Rigid
Unsmiling
Unsmiling adjective - Not joking or playful in mood or manner.
Rigid and unsmiling are semantically related in uncompromising topic. Sometimes you can use "Rigid" instead an adjective "Unsmiling".
Mutual synonyms
Cite this Source
Unsmiling and Rigid. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/rigid/unsmiling
Rigid & Unsmiling. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/rigid/unsmiling>.
Unsmiling or Rigid. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/rigid/unsmiling.
Google Ngram Viewer shows how "rigid" and "unsmiling" have occurred on timeline