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

40 entries under adjective topic. ×

1
adamant(mean, hard, severe, harsh)
1
bullhead(mean, hard, tough, harsh)
1
cold fish(expression, mean, hard, unfeeling)
1
dogged(mean, hard, harsh, inflexible)
1
firm(mean, hard, severe, harsh)
1
fixed(mean, hard, severe, harsh)
1
hanging tough(expression, mean, hard, rigid)
1
hard(mean, severe, harsh, solid)
1
hard-boiled(mean, hard, tough, harsh)
1
hard-hearted(mean, hard, tough, harsh)
1
hard-nosed(mean, hard, tough, harsh)
1
harsh(mean, hard, severe, solid)
1
immovable(mean, hard, tough, harsh)
1
implacable(mean, hard, tough, harsh)
1
indurate(mean, hard, tough, harsh)
1
inexorable(mean, hard, harsh, stiff)
1
inflexible(mean, hard, severe, harsh)
1
iron(mean, hard, tough, harsh)
1
mean(hard, tough, harsh, unfeeling)
1
mulish(mean, hard, harsh, inflexible)
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APASmart Define. (2011). tough nut to crack thesaurus. Retrieved September 30, 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 September 30, 2026).
HarvardSmart Define 2011, tough nut to crack thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms>.
MLASmart Define. "tough nut to crack thesaurus" 23 May 2011. Web. 30 September 2026. <https://smartdefine.org/tough_nut_to_crack/thesaurus/synonyms>