133 entries under determined topic. ×

24
insistent(adjective, resolute, obstinate, uncompromising)
17
adamantine(adjective, strong, hard, tough, cruel)
16
unwavering(adjective, secure, firm, solid)
15
steady(adjective, move, calm, strong, cool)
13
hard-nosed(adjective, mean, strong, hard, secure)
12
constant(adjective, secure, firm, solid)
12
mulish(adjective, mean, strong, hard, tough)
12
unshakeable(adjective, resolute, uncompromising)
11
hard(adjective, mean, strong, tough, cruel)
11
intractable(adjective, hard, firm, difficult)
11
unbendable(adjective, resolute, obstinate, uncompromising)
10
dogged(adjective, mean, hard, fixed)
10
set in stone(expression, adjective, idiom, mean, hard)
9
pat(adjective, difficult, wild, usual)
9
tenacious(adjective, strong, secure, firm, solid)
8
persistent(adjective, stable, fixed, resolute)
8
resolved(adjective, usual, fixed, resolute)
8
unmoved(adjective, calm, cool, firm)
8
unswayable(adjective, hard, resolute, obstinate)
7
hanging tough(expression, adjective, mean, hard)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>