Hard to understand
Tough and hard to understand are semantically related. In some cases you can replace term "Tough" with "Hard to understand", this terms are similar.
Tough
Tough adjective - Not easily chewed.
Hard to understand and tough are semantically related. Sometimes you can replace phrase "Hard to understand" with "Tough", this terms are similar.
Cite this Source
Tough and Hard to understand. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/hard_to_understand/tough
Hard to understand & Tough. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/hard_to_understand/tough>.
Tough or Hard to understand. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/hard_to_understand/tough.