50 entries under complexity topic. ×

5
difficulty(noun, trouble, disorder, block, delay)
5
hitch(noun, trouble, disorder, block, delay)
5
obstacle(noun, trouble, disorder, block, delay)
5
obstruction(noun, trouble, disorder, block, delay)
5
snag(noun, trouble, disorder, block, difficulty)
4
hindrance(noun, trouble, disorder, block, delay)
2
check(noun, trouble, control, disorder, block)
2
complication(noun, trouble, catch, difficulty, pain)
2
hazard(noun, trouble, disorder, difficulty, weakness)
1
adversity(noun, trouble, difficulty, pain, struggle)
1
arduousness(noun, trouble, difficulty, pain, struggle)
1
awkwardness(noun, trouble, difficulty, pain, struggle)
1
barricade(noun, trouble, disorder, block, difficulty)
1
crisis(noun, trouble, difficulty, pain, struggle)
1
crux(noun, trouble, difficulty, pain, struggle)
1
dead end(noun, expression, trouble, draw, difficulty)
1
deadlock(noun, trouble, difficulty, pain, struggle)
1
deep water(noun, expression, trouble, difficulty, pain)
1
dilemma(noun, trouble, difficulty, pain, struggle)
1
distress(noun, trouble, difficulty, pain, struggle)
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APASmart Define. (2015). stumbling block thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stumbling_block/thesaurus/synonyms
ChicagoSmart Define. 2015. "stumbling block thesaurus" https://smartdefine.org/stumbling_block/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, stumbling block thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stumbling_block/thesaurus/synonyms>.
MLASmart Define. "stumbling block thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/stumbling_block/thesaurus/synonyms>