200 entries under adjective topic. ×

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hatchet job(expression, unsparing, inhumane)
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having a killer instinct(expression, idiom, unsparing, inhumane)
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in the groove(disciplined, structured)
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incessant(persistent, constant)
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inflexible(cruel, pitiless, merciless, ruthless)
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inhumane
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intractable(cruel, pitiless, merciless, ruthless)
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intransigent(persistent, constant)
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iron-fisted(dogged, disciplined, structured, unsparing)
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ironclad(stiff, strict, demanding)
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mean machine(expression, unsparing, inhumane)
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no-nonsense(tough, rigid, scrupulous)
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oppressive(tough, rigid, scrupulous, binding)
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perpetual(persistent, constant)
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persistent
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picky(tough, rigid, scrupulous)
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poignant(stiff, strict, demanding)
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prudish(tough, rigid, scrupulous)
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punctilious(tough, rigid, scrupulous)
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puritanical(tough, rigid, scrupulous)
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APASmart Define. (2015). ironfisted thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/ironfisted/thesaurus/synonyms
ChicagoSmart Define. 2015. "ironfisted thesaurus" https://smartdefine.org/ironfisted/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, ironfisted thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/ironfisted/thesaurus/synonyms>.
MLASmart Define. "ironfisted thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/ironfisted/thesaurus/synonyms>