Pronunciation: /ʌnfəˈmɪlɪə/
adjective
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1not known or recognized: he felt a stranger among the crowd of unfamiliar faces his voice was unfamiliar to her
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unusual or uncharacteristic: the yellow taxicab was an unfamiliar sight on these roads
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2 (unfamiliar with) not having knowledge or experience of: he seems unfamiliar with recent research on this topic

Derivatives
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Pronunciation: /-lɪˈarɪti/
noun