| unaffected | (adjective) undergoing no change when acted upon | - |
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| (adjective) free of artificiality; sincere and genuine | - |
| (adjective) emotionally unmoved | Synonyms: unmoved, untouched |
| (adjective) unaware of or indifferent to | Synonyms: insensible |
| unaffecting | (adjective) not arousing affect | - |
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| unaffectionate | (adjective) lacking affection or warm feeling | Synonyms: detached, uncaring |
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| unaffiliated | (adjective) not affiliated | - |
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| unaffixed | (adjective) not affixed | Synonyms: loose |
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| unafraid | (adjective) oblivious of dangers or perils or calmly resolute in facing them | Synonyms: fearless |
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| (adjective) free from fear or doubt; easy in mind | Synonyms: secure, untroubled |