Synonyms|172Antonyms|16|Broader|1Narrower|0Related|28

54 entries under strong topic. ×

1
fast(calm, tough, solid, substantial)
1
firm(calm, tough, steady, even)
1
fixed resistant(expression, calm, solid, substantial)
1
indissoluble(permanent, everlasting, eternal, long-term)
1
invariable(calm, solid, steady, substantial)
1
nailed(calm, solid, steady, substantial)
1
poised(calm, solid, steady, substantial)
1
reliable(calm, tough, solid, substantial)
1
resolute(calm, solid, steady, substantial)
1
safe(calm, solid, steady, substantial)
1
secure(calm, solid, steady, substantial)
1
set(calm, solid, steady, substantial)
1
set in stone(expression, idiom, calm, constant)
1
solid(calm, steady, substantial, even)
1
solid as a rock(expression, idiom, calm, substantial)
1
sound(calm, tough, solid, substantial)
1
stabile(calm, solid, steady, substantial)
1
stalwart(calm, solid, steady, substantial)
1
stationary(calm, solid, steady, substantial)
1
staunch(calm, solid, steady, substantial)
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APASmart Define. (2016). perdurable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/perdurable/thesaurus/synonyms
ChicagoSmart Define. 2016. "perdurable thesaurus" https://smartdefine.org/perdurable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, perdurable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/perdurable/thesaurus/synonyms>.
MLASmart Define. "perdurable thesaurus" 3 March 2016. Web. 23 September 2026. <https://smartdefine.org/perdurable/thesaurus/synonyms>