Synonyms|96Antonyms|1|Broader|0Narrower|0Related|0

38 entries under pigheaded topic. ×

1
adamant(adjective, mean, hard, severe, harsh)
1
bullhead(adjective, mean, hard, tough, harsh)
1
cold fish(expression, adjective, mean, hard, unfeeling)
1
dogged(adjective, mean, hard, harsh, inflexible)
1
firm(adjective, mean, hard, severe, harsh)
1
fixed(adjective, mean, hard, severe, harsh)
1
hanging tough(expression, adjective, mean, hard, rigid)
1
hard(adjective, mean, severe, harsh, solid)
1
hard-boiled(adjective, mean, hard, tough, harsh)
1
hard-hearted(adjective, mean, hard, tough, harsh)
1
hard-nosed(adjective, mean, hard, tough, harsh)
1
harsh(adjective, mean, hard, severe, solid)
1
immovable(adjective, mean, hard, tough, harsh)
1
implacable(adjective, mean, hard, tough, harsh)
1
indurate(adjective, mean, hard, tough, harsh)
1
inexorable(adjective, mean, hard, harsh, stiff)
1
inflexible(adjective, mean, hard, severe, harsh)
1
iron(adjective, mean, hard, tough, harsh)
1
mean(adjective, hard, tough, harsh, unfeeling)
1
mulish(adjective, mean, hard, harsh, inflexible)
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APASmart Define. (2011). tough nut to crack thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms
ChicagoSmart Define. 2011. "tough nut to crack thesaurus" https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2011, tough nut to crack thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms>.
MLASmart Define. "tough nut to crack thesaurus" 23 May 2011. Web. 1 October 2026. <https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms>