109 entries under hard topic. ×

21
perverse(adjective, mean, difficult, cross)
20
unrelenting(adjective, mean, strong, tough)
18
hard-nosed(adjective, mean, tough, rough)
16
unshakable(adjective, mean, strong, tough)
14
tough(adjective, mean, strong, rough)
12
stiff-necked(adjective, mean, severe, resist)
9
difficult(adjective, tough, stubborn, complicated)
8
set in stone(expression, adjective, idiom, mean)
8
stern(adjective, tough, severe, rough)
8
uncooperative(adjective, mean, tough, harsh)
7
rigorous(adjective, severe, resolute, rigid)
6
harsh(adjective, mean, severe, rough)
6
immutable(adjective, set, strong, severe)
6
strict(adjective, tough, moderate, severe)
5
implacable(adjective, mean, cruel, determined)
5
steely(adjective, set, stiff, rigid)
5
unalterable(adjective, determined, fixed, inflexible)
4
iron(adjective, set, mean, strong)
4
unadaptable(adjective, set, stiff, rigid)
3
hanging tough(expression, adjective, mean, determined)
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APASmart Define. (2015). obstinate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/obstinate/thesaurus/synonyms
ChicagoSmart Define. 2015. "obstinate thesaurus" https://smartdefine.org/obstinate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, obstinate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/obstinate/thesaurus/synonyms>.
MLASmart Define. "obstinate thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/obstinate/thesaurus/synonyms>