Synonyms|66Antonyms|0|Broader|0Narrower|0Related|3
1
wrongheaded(adjective, persistent, obstinate, insistent, dogged)
0
adamant(adjective, persistent, obstinate, insistent, dogged)
0
hard-boiled(adjective, tough)
0
hard as nails(expression, adjective, idiom, tough, rough)
0
hardboiled(tough, hard-nosed)
0
unfeeling(adjective, tough, rough, hardened, cynical)
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APASmart Define. (2011). hard-shelled thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hard-shelled/thesaurus/synonyms
ChicagoSmart Define. 2011. "hard-shelled thesaurus" https://smartdefine.org/hard-shelled/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2011, hard-shelled thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hard-shelled/thesaurus/synonyms>.
MLASmart Define. "hard-shelled thesaurus" 24 May 2011. Web. 26 September 2026. <https://smartdefine.org/hard-shelled/thesaurus/synonyms>