Perplexity
Perplexity noun - A state of mental uncertainty.
Thorny problem and perplexity are semantically related. In some cases you can use "Thorny problem" instead a noun "Perplexity".
Thorny problem
Perplexity and thorny problem are semantically related. You can use "Perplexity" instead a noun phrase "Thorny problem".
Cite this Source
Thorny problem and Perplexity. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/perplexity/thorny_problem
Perplexity & Thorny problem. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/perplexity/thorny_problem>.
Thorny problem or Perplexity. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/perplexity/thorny_problem.
Google Ngram Viewer shows how "perplexity" and "thorny problem" have occurred on timeline