250 entries under difficulty topic. ×

7
mystification(noun, trouble, concern, anxiety)
7
paradox(noun, trouble, pain, struggle)
7
question(noun, trouble, worry, challenge)
6
fog(noun, trouble, disorder, confusion)
6
intricacy(noun, trouble, disorder, confusion)
6
uncertainty(noun, fix, concern, anxiety)
5
bother(noun, verb, trouble, charge, worry)
5
complexity(noun, trouble, disorder, confusion)
5
crux(noun, trouble, change, pain)
5
fix(noun, trouble, confusion, pain)
5
mess(noun, trouble, change, disorder, worry)
5
pickle(noun, trouble, change, fix, worry)
5
strait(noun, trouble, change, fix, worry)
4
convolution
4
daze(noun, trouble, disorder, confusion)
4
haze(noun, trouble, disorder, confusion)
4
involvement(trouble, disorder, struggle, mess)
4
jam(noun, trouble, fix, confusion)
4
puzzler(noun, show, question, puzzle)
4
teaser(noun, question, secret, puzzle)
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APASmart Define. (2015). perplexity thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/perplexity/thesaurus/synonyms
ChicagoSmart Define. 2015. "perplexity thesaurus" https://smartdefine.org/perplexity/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, perplexity thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/perplexity/thesaurus/synonyms>.
MLASmart Define. "perplexity thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/perplexity/thesaurus/synonyms>