Indefatigable
Indefatigable adjective - Showing no signs of weariness even after long hard effort.
Tough and indefatigable are semantically related. in strong topic. In some cases you can use "Tough" instead an adjective "Indefatigable".
Tough
Tough adjective - Not easily chewed.
Indefatigable and tough are semantically related. Sometimes you can use "Indefatigable" instead an adjective "Tough".
Mutual synonyms
Related pairs
- firm and indefatigable
- firm and tough
- resolute and indefatigable
- resolute and tough
- determined and indefatigable
- determined and tough
- inflexible and indefatigable
- inflexible and tough
- strenuous and indefatigable
- strenuous and tough
- stubborn and indefatigable
- stubborn and tough
- unyielding and indefatigable
- unyielding and tough
Cite this Source
Tough and Indefatigable. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/indefatigable/tough
Indefatigable & Tough. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/indefatigable/tough>.
Tough or Indefatigable. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/indefatigable/tough.
Google Ngram Viewer shows how "indefatigable" and "tough" have occurred on timeline