U 2017-10-05T15:31:07+00:00
UN is a prefix meaning ‘not’. See PREFIX. For example uncertain means not certain and unworried means not worried. UNAWARE – (adjective) is the opposite of aware. See AWARE. “He crept up behind her so quietly that she was unaware of his presence. The blind person was unaware that she had come into the room. […]
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