| adamance | (noun) resoluteness by virtue of being unyielding and inflexible | Synonyms: obduracy, unyieldingness |
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| adamant | (adjective) impervious to pleas, persuasion, requests, reason | Synonyms: adamantine, inexorable, intransigent |
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| (noun) very hard native crystalline carbon valued as a gem | Synonyms: diamond |
| adamantine | (adjective) consisting of or having the hardness of adamant | - |
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| (adjective) having the hardness of a diamond | - |
| (adjective) impervious to pleas, persuasion, requests, reason | Synonyms: adamant, inexorable, intransigent |
| adamantly | (adverb) inflexibly; unshakably | - |
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