64 entries under tough topic. ×

1
labored(severe, painful, problematic, trying)
1
laborious(severe, painful, problematic, trying)
1
no picnic(expression, severe, painful, problematic)
1
not easy(expression, severe, painful, problematic)
1
onerous(severe, painful, problematic, trying)
1
operose(severe, painful, problematic, trying)
1
painful(adjective, severe, problematic, trying)
1
problem(severe, painful, problematic, trying)
1
problematic(severe, painful, trying)
1
prohibitive(severe, painful, problematic, trying)
1
rigid(severe, painful, problematic, trying)
1
stiff(severe, painful, problematic, trying)
1
strenuous(severe, painful, problematic, trying)
1
toilsome(severe, painful, problematic, trying)
1
trying(severe, painful, problematic)
1
unyielding(severe, painful, problematic, trying)
1
uphill(severe, painful, problematic, trying)
1
upstream(severe, painful, problematic, trying)
1
wearisome(severe, painful, problematic, trying)
0
argumentative(problematic, trying)
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APASmart Define. (2016). immense thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/immense/thesaurus/synonyms
ChicagoSmart Define. 2016. "immense thesaurus" https://smartdefine.org/immense/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, immense thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/immense/thesaurus/synonyms>.
MLASmart Define. "immense thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/immense/thesaurus/synonyms>