Synonyms|777Antonyms|138|Broader|12Narrower|7Related|206

111 entries under strong topic. ×

4
riveted(adjective, secure, still, substantial)
4
severe(adjective, hard, tough, cruel)
4
tough(adjective, mean, hard, determined)
3
bullheaded(adjective, hard, tough, difficult)
3
durable(adjective, secure, firm, solid)
3
flinty(adjective, hard, tough, sturdy)
3
strict(adjective, set, hard, tough)
3
tight(adjective, secure, firm, solid)
2
austere(adjective, hard, tough, sturdy)
2
fastened(adjective, secure, firm, solid)
2
hard-core(adjective, hard, tough, firm)
2
harsh(adjective, mean, hard, tough)
2
indomitable(adjective, hard, tough, difficult)
2
sturdy(adjective, hard, tough, firm)
2
taut(adjective, secure, substantial, stable)
1
adjusted(adjective, solid, stable, sure)
1
authoritarian(adjective, hard, tough, sturdy)
1
bound(adjective, solid, cruel, determined)
1
buttoned down(expression, adjective, solid, stable)
1
closed(secure, substantial, stable, unmoving)
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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>