Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Rigid and difficult are semantically related in harsh topic. In some cases you can use "Rigid" instead an adjective "Difficult", when it comes to topics like troublesome, unmanageable socially, hard to do.
Nearby Word: difficulty
Mutual synonyms
Both words in one sentence
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Their rigid honor code makes them sometimes difficult employees, but their skill keeps them hired.
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In armored fighting, a half-sword stab to the groin is effective because it's one of the few places difficult to cover with rigid plate.
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The way they do it in practice is to stand mostly-still in the middle of the room and shoot in rigid lines; so unless their targets are always aiming at the Clerics' arms, it's difficult to imagine it working as advertised.
Source: Awesomeness by Analysis
Cite this Source
Rigid and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/rigid
Difficult & Rigid. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/rigid>.
Rigid or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/rigid.
Google Ngram Viewer shows how "difficult" and "rigid" have occurred on timeline