Having no equal or rival; incomparable; not paired or matched with something similar.
From the prefix 'un-' meaning 'not' plus 'matched', the past participle of 'match'. The word has been used since the 1500s.
An unmatched pair of socks is annoying, but in professional sports, an unmatched team is often unbeatable—think of how the 2000 Yankees dominated partly because their roster had no weaknesses.
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