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

206 entries under strong topic. ×

6
undaunted(adjective, tough, firm, steady)
5
bound(adjective, flat, firm, solid)
5
dauntless(adjective, tough, vigorous, bold)
5
dedicated(adjective, clear, tough, severe)
5
energetic(adjective, sound, tough, solid)
5
gritty(adjective, tough, determined, steady)
5
gutsy(adjective, tough, determined, vigorous)
5
iron(adjective, tough, firm, solid)
5
patient(adjective, firm, determined, steady)
5
stable(adjective, sound, secure, tough)
5
unfailing(adjective, firm, determined, steady)
4
brave(adjective, tough, determined, vigorous)
4
powerful(adjective, sound, tough, fit)
4
resistant(adjective, determined, resolute, sturdy)
4
serious(adjective, firm, determined, resolute)
4
solid(adjective, sound, secure, tough)
4
substantial(adjective, sound, tough, fit)
3
able-bodied(adjective, sound, tough, fit)
3
active(adjective, sound, tough, solid)
3
fearless(adjective, tough, vigorous, steady)
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ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 25 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>