136 entries under strong topic. ×

1
explicit(adjective, complete, flat, total)
1
fixed resistant(expression, calm, solid, substantial)
1
flat(adjective, quiet, indifferent, certain)
1
forceful(adjective, sound, tough, solid)
1
forcible(adjective, sound, tough, solid)
1
hale(adjective, sound, tough, fit)
1
hang tough(expression, certain, definite, resolved)
1
hard as nails(expression, adjective, idiom, sound)
1
hardened(fit, familiar, healthy, well)
1
healthy(adjective, sound, tough, fit)
1
heavy-duty(adjective, sound, tough, solid)
1
in fine feather(expression, adjective, idiom, sound)
1
inflexible(adjective, flat, firm, certain)
1
intent(adjective, flat, certain, determined)
1
inured(fit, healthy, well, robust)
1
mighty(adjective, sound, tough, fit)
1
muscular(adjective, sound, tough, fit)
1
nailed(calm, solid, steady, substantial)
1
poised(adjective, calm, secure, firm)
1
powerful(adjective, sound, tough, fit)
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APASmart Define. (2016). enduring thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms
ChicagoSmart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, enduring thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>.
MLASmart Define. "enduring thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms>