424 entries under adjective topic. ×

4
tough(mean, strong, hard, determined)
4
true(firm, fixed, resolute, persistent)
4
uncompliant(hard, firm, determined, resolute)
4
unfaltering(firm, solid, stable, fixed)
4
unruly(tough, difficult, obstinate, stubborn)
4
unshaken(firm, solid, stable, fixed)
3
bullheaded(strong, hard, tough, difficult)
3
changeless(set, firm, solid, still)
3
contumacious(determined, fixed, inflexible, obstinate)
3
durable(strong, secure, firm, solid)
3
emotionless(detached, blank, unfeeling, impassive)
3
faithful(firm, intense, true, fixed)
3
flinty(strong, hard, tough, sturdy)
3
frozen(still, fixed, motionless, stationary)
3
hidebound(determined, stiff, resolute, obstinate)
3
indurate(mean, hard, determined, resolute)
3
inert(still, passive, motionless, stationary)
3
monolithic
3
permanent(secure, firm, true, steady)
3
pig-headed(determined, resolute, obstinate, stubborn)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
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>