Tough
Tough adjective - Not easily chewed.
Unexcitable and tough are semantically related In some cases you can use "Unexcitable" instead an adjective "Tough".
Unexcitable
Unexcitable adjective - Not easily excited.
Tough and unexcitable are semantically related in unfeeling topic. Sometimes you can use "Tough" instead an adjective "Unexcitable".
Cite this Source
Unexcitable and Tough. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/tough/unexcitable
Tough & Unexcitable. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/tough/unexcitable>.
Unexcitable or Tough. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/tough/unexcitable.
Google Ngram Viewer shows how "tough" and "unexcitable" have occurred on timeline