10 entries under difficulty topic. ×

18
puzzle(noun, trouble, challenge, property)
14
riddle(noun, trouble, challenge, property)
12
dilemma(noun, trouble, pain, challenge)
11
quandary(noun, trouble, pain, struggle)
5
crux(noun, trouble, pain, challenge)
4
knotty point(noun, expression, idiom, question)
4
vexed question(noun, expression, idiom, question)
3
poser(noun, question, problem, puzzle)
2
knot(noun, trouble, pain, struggle)
2
perplexity(noun, trouble, pain, struggle)
10 years ago|20k views|share |citing 
APASmart Define. (2016). paradox thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/paradox/thesaurus/synonyms
ChicagoSmart Define. 2016. "paradox thesaurus" https://smartdefine.org/paradox/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, paradox thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/paradox/thesaurus/synonyms>.
MLASmart Define. "paradox thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/paradox/thesaurus/synonyms>