Tough
Tough adjective - Not easily chewed.
Unimpressible and tough are semantically related In some cases you can use "Unimpressible" instead an adjective "Tough".
Unimpressible
Tough and unimpressible are semantically related in pigheaded topic. Sometimes you can use "Tough" instead an adjective "Unimpressible".
Mutual synonyms
Related pairs
Cite this Source
Unimpressible and Tough. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/tough/unimpressible
Tough & Unimpressible. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/tough/unimpressible>.
Unimpressible or Tough. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/tough/unimpressible.
Google Ngram Viewer shows how "tough" and "unimpressible" have occurred on timeline