612 entries under adjective topic. ×

14
adamantine(strong, hard, tough, severe)
14
constant(good, strong, flat, firm)
14
hard-nosed(resolute, impulsive, rigid, obstinate)
14
indomitable(strong, hard, tough, firm)
14
pertinacious(strong, tough, firm, deliberate)
14
unshakeable(resolute, uncompromising)
13
positive(clear, strong, certain, resolute)
13
set in stone(expression, idiom, firm, solid)
13
strong-willed(strong, tough, firm, intense)
13
tough(clear, strong, hard, severe)
13
unflagging(strong, firm, solid, steady)
12
brave(clear, tough, severe, firm)
12
earnest(set, severe, total, sensible)
12
intent(set, strong, severe, flat)
12
single-minded(firm, sensible, harsh, solid)
12
sure(good, clear, strong, tough)
12
unswayable(hard, firm, resolute, obstinate)
11
confirmed(verb, usual, regular, persistent)
11
decisive(good, set, strong, firm)
11
dedicated(set, clear, strong, tough)
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APASmart Define. (2016). determined thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/determined/thesaurus/synonyms
ChicagoSmart Define. 2016. "determined thesaurus" https://smartdefine.org/determined/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, determined thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/determined/thesaurus/synonyms>.
MLASmart Define. "determined thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/determined/thesaurus/synonyms>