Synonyms|862Antonyms|116|Broader|10Narrower|8Related|256

73 entries under substantial topic. ×

5
stable(adjective, strong, sound, secure, tough)
4
powerful(adjective, strong, sound, tough, fit)
4
solid(adjective, strong, sound, secure, tough)
3
able-bodied(adjective, strong, sound, tough, fit)
3
active(adjective, strong, sound, tough, solid)
3
forceful(adjective, clear, strong, sound, tough)
3
hale(adjective, strong, sound, tough, fit)
2
heavy(adjective, strong, sound, tough, solid)
2
robust(adjective, strong, sound, secure, tough)
2
settled(adjective, strong, secure, flat, firm)
2
sinewy(adjective, strong, hard, sound, tough)
2
sound(adjective, strong, secure, tough, fit)
1
able(adjective, strong, sound, tough, fit)
1
anchored(adjective, strong, secure, solid, steady)
1
athletic(adjective, strong, sound, tough, fit)
1
big(adjective, strong, sound, tough, solid)
1
capable(adjective, strong, sound, tough, fit)
1
fastened(adjective, strong, secure, firm, solid)
1
forcible(adjective, strong, sound, tough, solid)
1
hard as nails(expression, adjective, idiom, strong, sound)
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 23 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>