210 entries under hard topic. ×

1
dyed-in-the-wool(adjective, set, strong, tough)
1
ferocious(adjective, rough, harsh, cruel)
1
fierce(adjective, rough, harsh, cruel)
1
forbidding(adjective, person, strong, tough)
1
frowning(adjective, strong, tough, severe)
1
graceless(adjective, firm, solid, stiff)
1
hang-tough(adjective, strong, tough, harsh)
1
hard-bitten(adjective, strong, rough, harsh)
1
hard-shell(adjective, strong, tough, severe)
1
hard-shelled(adjective, tough, severe, rough)
1
hard as nails(expression, adjective, idiom, set)
1
hardhearted(adjective, severe, harsh, careless)
1
heavy(adjective, strong, tough, severe)
1
immalleable(adjective, firm, solid, stiff)
1
impassive(adjective, secure, careless, indifferent)
1
impenitent(adjective, careless, indifferent, cruel)
1
insensate(adjective, careless, indifferent, cruel)
1
insensible(adjective, strong, tough, careless)
1
insentient(adjective, careless, indifferent, cruel)
1
jelled(adjective, tough, firm, solid)
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APASmart Define. (2016). inflexible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>