66 entries under inflexible topic. ×

55
stubborn(adjective, characteristic, quality, mean, strong)
53
firm(noun, adjective, mean, strong, hard)
45
rigid(adjective, mean, strong, hard, secure)
45
obdurate(adjective, strong, hard, secure, tough)
44
resolute(adjective, secure, firm, solid, determined)
43
fixed(adjective, move, mean, strong, hard)
43
uncompromising(adjective, mean, hard, secure, determined)
43
unyielding(adjective, mean, strong, hard, secure)
41
determined(adjective, strong, hard, tough, usual)
38
inexorable(adjective, mean, strong, hard, tough)
36
set(adjective, strong, secure, firm, solid)
36
unbending(adjective, mean, strong, hard, tough)
30
unshakable(adjective, mean, strong, hard, secure)
28
relentless(adjective, mean, strong, hard, tough)
27
adamant(adjective, mean, strong, hard, secure)
27
obstinate(adjective, mean, hard, determined, usual)
26
steadfast(adjective, move, secure, firm, solid)
12
mulish(adjective, mean, strong, hard, tough)
11
hard(adjective, mean, strong, tough, cruel)
10
dogged(adjective, mean, hard, determined, fixed)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>