153 entries under firm topic. ×

1
faithful(adjective, strong, determined, bold)
1
forceful(adjective, strong, tough, severe)
1
graceless(adjective, hard, solid, stiff)
1
hard as nails(expression, adjective, idiom, set, hard)
1
immalleable(adjective, hard, solid, stiff)
1
intent(adjective, strong, flat, certain)
1
jelled(adjective, hard, tough, solid)
1
locked in(expression, severe, fixed, stiff)
1
mechanical(adjective, hard, solid, stiff)
1
numbed(adjective, hard, solid, stiff)
1
ornery(adjective, tough, unreasonable, grim)
1
petrified(adjective, hard, solid, rigid)
1
purposeful(adjective, deliberate, determined, resolute)
1
rheumatic(adjective, hard, solid, stiff)
1
secure(adjective, close, strong, steady)
1
serious(adjective, strong, hard, tough, severe)
1
stand pat(expression, strong, steady, definite)
1
starchy(adjective, strong, hard, solid)
1
static(adjective, set, severe, harsh)
1
stiff as a board(expression, adjective, idiom, hard)
10 years ago|28k views|share |citing 
APASmart Define. (2016). inflexible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>