67 entries under difficult topic. ×

2
formidable(adjective, hard, tough, severe)
2
labored(adjective, hard, tough, severe)
2
tiring(adjective, hard, tough, severe)
2
uphill(hard, tough, severe, problematic)
1
hairy(shocking, upsetting, disturbing, embarrassing)
1
herculean(tough, severe, problematic, trying)
1
no picnic(expression, hard, tough, severe)
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APASmart Define. (2015). painful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/painful/thesaurus/synonyms
ChicagoSmart Define. 2015. "painful thesaurus" https://smartdefine.org/painful/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, painful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/painful/thesaurus/synonyms>.
MLASmart Define. "painful thesaurus" 21 July 2015. Web. 26 September 2026. <https://smartdefine.org/painful/thesaurus/synonyms>