Synonyms|308Antonyms|65|Broader|1Narrower|0Related|100

128 entries under determined topic. ×

9
tenacious(adjective, tough, firm, difficult, resist)
9
uncompromising(adjective, mean, hard, firm, deliberate)
8
intransigent(adjective, tough, resolute, stubborn)
7
adamantine(adjective, tough, resolute, stubborn)
7
contrary(adjective, tough, difficult, awkward)
7
immovable(adjective, mean, hard, usual)
7
rigid(adjective, mean, hard, tough, firm)
7
unrelenting(adjective, mean, hard, tough, firm)
6
unbending(adjective, mean, hard, tough)
5
contumacious(adjective, tough, firm, unreasonable)
5
dogmatic(adjective, fixed, rigid, strict)
5
hard(adjective, mean, tough, harsh)
5
resolute(adjective, tough, usual, regular)
4
inexorable(adjective, mean, hard, tough)
4
persevering(adjective, tough, firm, unreasonable)
4
persistent(adjective, tough, firm, unreasonable)
4
relentless(adjective, mean, hard, tough)
4
restive(adjective, fixed, stubborn)
3
firm(adjective, mean, hard, tough)
3
fixed(adjective, mean, hard, tough, firm)
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ChicagoSmart Define. 2015. "pigheaded thesaurus" https://smartdefine.org/pigheaded/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, pigheaded thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/pigheaded/thesaurus/synonyms>.
MLASmart Define. "pigheaded thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/pigheaded/thesaurus/synonyms>