114 entries under strong topic. ×

4
set(verb, adjective, calm, secure)
3
heavy-duty(adjective, sound, tough, solid)
3
immovable(adjective, secure, firm, solid)
3
staunch(adjective, calm, sound, secure)
3
well-founded(adjective, calm, sound, secure)
2
adamantine(adjective, tough, firm, stiff)
2
big(adjective, sound, tough, solid)
2
bulky(solid, significant, large, robust)
2
dense(adjective, hard, firm, solid)
2
hard as nails(expression, adjective, idiom, hard)
2
healthy(adjective, hard, solid, heavy)
2
heavy(adjective, sound, tough, solid)
2
immobile(secure, substantial, stable, unmoving)
2
in fine feather(expression, adjective, idiom, sound)
2
indissoluble(adjective, permanent, long-term, lifelong)
2
secure(adjective, calm, sound, tough)
2
set in stone(expression, adjective, idiom, calm)
2
sinewy(adjective, hard, sound, tough)
2
solid as a rock(expression, adjective, idiom, calm)
2
sure(adjective, calm, secure, firm)
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APASmart Define. (2015). durable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/durable/thesaurus/synonyms
ChicagoSmart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, durable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>.
MLASmart Define. "durable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms>