40 entries under protected topic. ×

1
safe and sound(expression, adjective, idiom, strong, solid)
1
set(verb, adjective, strong, firm, solid)
1
solid(adjective, strong, stable, sure, safe)
1
solid as a rock(expression, adjective, idiom, strong, solid)
1
sound(adjective, strong, firm, solid, true)
1
stable(adjective, strong, firm, solid, true)
1
staunch(adjective, strong, firm, solid, true)
1
sure(adjective, strong, firm, solid, true)
1
tenacious(adjective, strong, firm, solid, true)
1
tight(adjective, strong, firm, solid, true)
0
immune(adjective, safe, sheltered, locked)
0
riskless(adjective, safe, sheltered, locked)
0
safe(adjective, sheltered, locked, walled)
0
safe as houses(expression, adjective, idiom, safe, sheltered)
0
sheltered(adjective, safe, locked)
0
steady(adjective, strong, solid, stable, safe)
0
unassailable(adjective, safe, sheltered, locked)
0
undamaged(adjective, safe, sheltered, locked)
0
unharmed(adjective, safe, sheltered, locked)
0
walled(verb, adjective, firm, defended)
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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>