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

94 entries under hard topic. ×

3
bullheaded(adjective, strong, tough, difficult)
3
flinty(adjective, strong, tough, sturdy)
3
indurate(adjective, mean, determined, resolute)
3
strict(adjective, set, strong, tough)
3
strong(adjective, secure, tough, solid)
3
unsympathetic(adjective, mean, tough, harsh)
2
austere(adjective, strong, tough, sturdy)
2
hard-core(adjective, strong, tough, firm)
2
harsh(adjective, mean, strong, tough)
2
indomitable(adjective, strong, tough, difficult)
2
ironclad(adjective, set, cruel, usual)
2
sturdy(adjective, strong, tough, firm)
2
unadaptable(adjective, rigid, inflexible, strict)
2
uncooperative(adjective, mean, difficult, wild)
2
unfeeling(adjective, mean, cool, detached)
1
authoritarian(adjective, strong, tough, sturdy)
1
bullhead(adjective, mean, tough, harsh)
1
cold fish(expression, adjective, mean, cool)
1
cruel(adjective, strong, tough, sturdy)
1
dyed-in-the-wool(adjective, set, strong, tough)
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ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>