497 entries under adjective topic. ×

98
stubborn(determined, resolute, uncompromising, obstinate)
83
inflexible(person, strong, hard, secure)
69
rigid(strong, hard, tough, severe)
66
uncompromising(hard, secure, tough, severe)
62
unyielding(mean, strong, hard, secure)
61
inexorable(mean, strong, hard, tough)
56
intransigent(resist, determined, resolute, inflexible)
54
obstinate(strong, hard, tough, severe)
53
unbending(strong, hard, tough, severe)
50
firm(noun, strong, hard, secure)
49
determined(strong, hard, tough, flat)
48
resolute(strong, hard, secure, tough)
46
relentless(mean, strong, hard, tough)
46
unrelenting(mean, strong, hard, tough)
44
immovable(strong, hard, secure, tough)
42
adamant(person, mean, strong, hard)
37
stiff(hard, tough, severe, rough)
32
fixed(strong, hard, secure, flat)
30
hard(mean, strong, cool, tough)
29
insistent(determined, resolute, obstinate, uncompromising)
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APASmart Define. (2016). obdurate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms
ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 24 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>