Synonyms|11Antonyms|0|Broader|0Narrower|0Related|0
1
bullheaded(adjective, hard, tough, difficult, wild)
1
locked in(expression, adjective, tough, difficult, wild)
1
mulish(adjective, hard, tough, difficult, wild)
1
pertinacious(adjective, hard, tough, difficult, wild)
1
pigheaded(adjective, hard, tough, difficult, wild)
1
willful(adjective, hard, tough, difficult, wild)
0
astute(adjective, hard, tough, shrewd, stubborn)
0
hardboiled(adjective, firm, shrewd, astute, immovable)
0
intractable(adjective, hard, tough, shrewd, stubborn)
0
levelheaded(adjective, hard, tough, shrewd, stubborn)
0
shrewd(adjective, hard, tough, stubborn, astute)
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APASmart Define. (1970). tough-nut thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tough-nut/thesaurus/synonyms
ChicagoSmart Define. 1970. "tough-nut thesaurus" https://smartdefine.org/tough-nut/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 1970, tough-nut thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tough-nut/thesaurus/synonyms>.
MLASmart Define. "tough-nut thesaurus" 1 January 1970. Web. 24 September 2026. <https://smartdefine.org/tough-nut/thesaurus/synonyms>