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