Impassive and Undemonstrative

Impassive

Impassive adjective - Not feeling or showing emotion.
Usage example: she remained impassive as the officers informed her of her son's death

Undemonstrative and impassive are semantically related In some cases you can use "Undemonstrative" instead an adjective "Impassive".

Undemonstrative

Undemonstrative adjective - Not feeling or showing emotion.
Usage example: an undemonstrative person by nature, he nevertheless loved his wife very much

Impassive and undemonstrative are semantically related in unemotional topic. You can use "Impassive" instead an adjective "Undemonstrative".
Cite this Source
Undemonstrative and Impassive. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/impassive/undemonstrative
Impassive & Undemonstrative. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/impassive/undemonstrative>.
Undemonstrative or Impassive. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/impassive/undemonstrative.
Google Ngram Viewer shows how "impassive" and "undemonstrative" have occurred on timeline