Frustrating
Frustrating adjective - Preventing realization or attainment of a desire.
Tough and frustrating are semantically related. In some cases you can use "Tough" instead an adjective "Frustrating".
Tough
Tough adjective - Not easily chewed.
Frustrating and tough are semantically related. Sometimes you can use "Frustrating" instead an adjective "Tough".
Both words in one sentence
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Because the bosses in Sakupen's Dadgame were not tough and frustrating enough, pausing is disabled when you fight them (though it's allowed everywhere else in the game).
Source: Bladder of Steel -
Nothing is more frustrating than finishing off a tough ice monster only to have Kuruna or Carlos smack them with their water-based weapon and revive them.
Source: Annoying Video Game Helper - The most dangerous and frustrating enemies you'll face in Metro 2033 are not the creepy-ass Lurkers, the elusive Demons, or the tough-as-nails Librarians, oh no.
Cite this Source
Tough and Frustrating. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/frustrating/tough
Frustrating & Tough. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/frustrating/tough>.
Tough or Frustrating. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/frustrating/tough.
Google Ngram Viewer shows how "frustrating" and "tough" have occurred on timeline