62 entries under problematic topic. ×

1
prohibitive(tough, severe, painful, trying)
1
rigid(tough, severe, painful, trying)
1
testing(adjective, tough, severe, difficult, violent)
1
unaccommodating(tough, trying)
1
unamenable(tough, trying)
1
unyielding(tough, severe, difficult, painful, troubled)
1
upstream(tough, severe, painful, trying)
0
argumentative(tough, antagonistic, aggressive, trying)
0
bearish(tough, trying)
0
boorish(tough, trying)
0
fastidious(tough, trying)
0
fractious(tough, trying)
0
hard to please(expression, idiom, tough, trying)
0
impolite(tough, trying)
0
intractable(tough, trying)
0
irritable(tough, trying)
0
oafish(tough, trying)
0
obstreperous(tough, trying)
0
perverse(tough, trying)
0
refractory(tough, trying)
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APASmart Define. (2016). strenuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms
ChicagoSmart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, strenuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>.
MLASmart Define. "strenuous thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms>