42 entries under hard topic. ×

3
implacable(adjective, mean, tough, firm)
2
set in stone(expression, adjective, idiom, mean)
2
tough(adjective, mean, firm, difficult)
1
astute(adjective, tough, sharp, practical)
1
bullhead(adjective, mean, harsh, inflexible)
1
hanging tough(expression, adjective, mean, determined)
1
hard-boiled(adjective, mean, tough, sharp)
1
hard-hearted(adjective, mean, harsh, inflexible)
1
indurate(adjective, mean, harsh, inflexible)
1
iron(adjective, mean, tough, firm)
1
mean(adjective, harsh, awkward, inflexible)
1
tough-nut(adjective, tough, difficult, wild)
1
tough nut to crack(expression, adjective, idiom, mean)
1
unimpressible(adjective, mean, harsh, inflexible)
1
unshakable(adjective, mean, tough, firm)
0
cold fish(expression, adjective, mean, harsh)
0
harsh(adjective, mean, inflexible, obstinate)
0
levelheaded(adjective, tough, shrewd, stubborn)
0
shrewd(adjective, tough, sharp, practical)
0
thick-skinned(adjective, mean, harsh, inflexible)
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APASmart Define. (2015). pigheaded thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/pigheaded/thesaurus/synonyms
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>