51 entries under difficulty topic. ×

7
hardship(noun, laboriousness, strenuousness)
7
stiffness(noun, firmness, rigidity, inflexibility)
4
toughness(noun, easy, condition, discipline)
3
adversity(noun, laboriousness, strenuousness)
2
arduousness(noun, discipline, strictness, laboriousness)
2
complication(laboriousness, strenuousness)
2
laboriousness(noun, strenuousness)
1
awkwardness(laboriousness, strenuousness)
1
exigency(noun, laboriousness, strenuousness)
0
barricade(laboriousness, strenuousness)
0
check(laboriousness, strenuousness)
0
crisis(laboriousness, strenuousness)
0
crux(laboriousness, strenuousness)
0
dead end(expression, laboriousness, strenuousness)
0
deadlock(laboriousness, strenuousness)
0
deep water(expression, laboriousness, strenuousness)
0
dilemma(laboriousness, strenuousness)
0
distress(laboriousness, strenuousness)
0
emergency(laboriousness, strenuousness)
0
fix(laboriousness, strenuousness)
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APASmart Define. (2015). rigorousness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigorousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigorousness thesaurus" https://smartdefine.org/rigorousness/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, rigorousness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigorousness/thesaurus/synonyms>.
MLASmart Define. "rigorousness thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/rigorousness/thesaurus/synonyms>