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Flinthearted has 7 synonyms. The top synonyms for flinthearted are unresponsive, hardhearted, unmerciful, coldblooded, stonyhearted, cold of heart, hard of heart. Another word for flinthearted is unresponsive. Browse the full list below.
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| Random | DefinitionA common synonym for flinthearted is unresponsive. Other synonyms include hardhearted, unmerciful, coldblooded, stonyhearted.
Flinthearted has 7 synonyms listed on Thesaurasize.
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