Synonyms|777Antonyms|138|Broader|12Narrower|7Related|206

84 entries under tough topic. ×

6
recalcitrant(adjective, difficult, determined, fixed)
6
refractory(adjective, firm, difficult, determined)
6
steely(adjective, strong, hard, determined)
6
stiff-necked(adjective, mean, strong, hard)
5
hardheaded(adjective, strong, hard, determined)
5
rigorous(adjective, set, strong, hard)
4
severe(adjective, strong, hard, cruel)
4
unruly(adjective, difficult, obstinate, stubborn)
3
bullheaded(adjective, strong, hard, difficult)
3
flinty(adjective, strong, hard, sturdy)
3
strict(adjective, set, strong, hard)
3
strong(adjective, hard, secure, solid)
3
ungovernable(adjective, difficult, obstinate, stubborn)
3
unsympathetic(adjective, mean, hard, harsh)
2
austere(adjective, strong, hard, sturdy)
2
hard-core(adjective, strong, hard, firm)
2
harsh(adjective, mean, strong, hard)
2
indomitable(adjective, strong, hard, difficult)
2
sturdy(adjective, strong, hard, firm)
2
unmanageable(adjective, difficult, determined, fixed)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 26 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>