23 entries under strong topic. ×

3
fast(adjective, firm, solid, stable)
2
fixed(verb, adjective, firm, solid)
1
adjusted(adjective, solid, stable, sure)
1
anchored(adjective, solid, stable, sure)
1
bound(verb, adjective, solid, stable)
1
buttoned down(expression, adjective, solid, stable)
1
fastened(verb, adjective, firm, solid)
1
firm(adjective, true, stable, fixed)
1
immovable(adjective, firm, solid, true)
1
iron(adjective, solid, stable, sure)
1
locked(adjective, firm, solid, stable)
1
nailed(adjective, solid, stable, sure)
1
safe and sound(expression, adjective, idiom, solid)
1
set(verb, adjective, firm, solid)
1
solid(adjective, stable, sure, safe)
1
solid as a rock(expression, adjective, idiom, solid)
1
sound(adjective, firm, solid, true)
1
stable(adjective, firm, solid, true)
1
staunch(adjective, firm, solid, true)
1
sure(adjective, firm, solid, true)
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APASmart Define. (2015). fortified thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fortified/thesaurus/synonyms
ChicagoSmart Define. 2015. "fortified thesaurus" https://smartdefine.org/fortified/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, fortified thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fortified/thesaurus/synonyms>.
MLASmart Define. "fortified thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/fortified/thesaurus/synonyms>