63 entries under problematic topic. ×

2
gargantuan(tough, trying)
2
not easy(expression, idiom, tough, trying)
1
tiresome(tough, severe, harsh, heavy, painful)
1
titanic(tough, trying)
1
wearisome(adjective, hard, tough, difficult, awkward)
1
stiff(adjective, tough, demanding, trying)
1
testing(adjective, tough, difficult, awkward, grim)
1
unaccommodating(tough, trying)
1
unamenable(tough, trying)
1
unmanageable socially(expression, tough, trying)
1
unyielding(tough, trying)
1
upstream(tough, trying)
0
ambitious(tough, trying)
0
argumentative(tough, trying)
0
backbreaker(tough, trying)
0
bearish(tough, trying)
0
boorish(tough, trying)
0
challenging(adjective, tough, difficult, awkward, grim)
0
crucial(tough, trying)
0
difficile(adjective, tough, difficult, awkward, grim)
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APASmart Define. (2015). grueling thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/grueling/thesaurus/synonyms
ChicagoSmart Define. 2015. "grueling thesaurus" https://smartdefine.org/grueling/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, grueling thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/grueling/thesaurus/synonyms>.
MLASmart Define. "grueling thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/grueling/thesaurus/synonyms>