42 entries under hard topic. ×

28
stubborn(adjective, characteristic, quality, mean)
23
obstinate(adjective, mean, resist, deliberate)
19
unyielding(adjective, mean, tough, deliberate)
18
mulish(adjective, mean, tough, difficult)
17
dogged(adjective, mean, tough, resist)
16
inflexible(adjective, mean, firm, deliberate)
16
perverse(adjective, mean, tough, firm)
12
adamant(adjective, mean, tough, deliberate)
11
stiff-necked(adjective, mean, tough, resist)
9
uncompromising(adjective, mean, firm, deliberate)
7
immovable(adjective, mean, determined, usual)
7
rigid(adjective, mean, tough, firm)
7
unrelenting(adjective, mean, tough, firm)
6
unbending(adjective, mean, tough, determined)
4
inexorable(adjective, mean, tough, determined)
4
relentless(adjective, mean, tough, determined)
4
uncooperative(adjective, mean, tough, difficult)
3
firm(adjective, mean, tough, determined)
3
fixed(adjective, mean, tough, firm)
3
hard-nosed(adjective, mean, tough, determined)
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APASmart Define. (2015). pigheaded thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/pigheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "pigheaded thesaurus" https://smartdefine.org/pigheaded/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, pigheaded thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/pigheaded/thesaurus/synonyms>.
MLASmart Define. "pigheaded thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/pigheaded/thesaurus/synonyms>