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

144 entries under tough topic. ×

5
willful(adjective, firm, difficult, resist)
4
brave(adjective, strong, determined, vigorous)
4
contumacious(adjective, firm, persistent, obstinate)
4
powerful(adjective, strong, sound, fit)
4
self-willed(adjective, firm, difficult, wild)
4
solid(adjective, strong, sound, secure)
4
substantial(adjective, strong, sound, fit)
3
able-bodied(adjective, strong, sound, fit)
3
active(adjective, strong, sound, solid)
3
fearless(adjective, strong, vigorous, steady)
3
forceful(adjective, clear, strong, sound)
3
game(strong, determined, bold, resolute)
3
hale(adjective, strong, sound, fit)
3
incompliant(adjective, firm, difficult, wild)
3
perverse(adjective, firm, difficult, resist)
2
abiding(adjective, strong, definite, persistent)
2
cantankerous(firm, difficult, wild, awkward)
2
cussed(firm, persistent, obstinate, stubborn)
2
heavy(adjective, strong, sound, solid)
2
insubordinate(firm, persistent, obstinate, stubborn)
For more, visit Tenacious on Power Thesaurus
10 years ago|22k views|share |citing 
APASmart Define. (2015). tenacious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 28 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>