395 entries under adjective topic. ×

55
stubborn(characteristic, quality, strong, firm)
43
persistent(strong, tough, flat, firm)
42
firm(noun, clear, strong, sound)
38
determined(clear, strong, tough, severe)
36
resolute(clear, strong, tough, severe)
34
dogged(strong, tough, firm, resist)
32
obstinate(strong, firm, intense, resist)
32
pertinacious(strong, tough, firm, difficult)
28
unyielding(clear, strong, sound, tough)
25
steadfast(clear, strong, secure, tough)
21
inflexible(strong, determined, resolute, obstinate)
19
courageous(firm, determined, vigorous, bold)
19
persevering(strong, tough, flat, firm)
19
tough(strong, firm, determined, resolute)
18
obdurate(strong, determined, resolute, obstinate)
17
adamant(strong, determined, resolute, persistent)
16
set(strong, secure, flat, firm)
16
staunch(clear, strong, sound, tough)
16
unwavering(strong, flat, firm, intense)
15
relentless(strong, tough, firm, determined)
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 21 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>