111 entries under strong topic. ×

13
secure(adjective, firm, solid, steady)
12
immobile(adjective, move, secure, solid)
12
mulish(adjective, mean, hard, tough)
12
rooted(adjective, secure, solid, usual)
11
hard(adjective, mean, tough, cruel)
11
stationary(adjective, move, secure, fixed)
10
motionless(adjective, secure, substantial, fixed)
10
solid(adjective, secure, firm, steady)
10
staunch(adjective, set, hard, firm)
9
tenacious(adjective, secure, firm, solid)
7
implacable(adjective, mean, hard, tough)
7
settled(adjective, secure, firm, solid)
6
anchored(adjective, secure, solid, steady)
6
grim(adjective, hard, tough, determined)
6
iron(adjective, mean, hard, tough)
6
steely(adjective, hard, tough, determined)
6
stiff-necked(adjective, mean, hard, tough)
6
unmoving(adjective, move, secure, substantial)
5
hardheaded(adjective, hard, tough, determined)
5
rigorous(adjective, set, hard, tough)
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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>