[1] : The Collaborative International Dictionary of English v.0.48

unpaired \unpaired\, a.
   not paired; not suited or matched.
   1913 webster

         and minds unpaired had better think alone. --crabbe.
   1913 webster

[2] : WordNet (r) 2.0

unpaired
     adj : of the remaining member of a pair, of socks e.g. syn: odd,
            unmatched, unmated
see also:
odd unmatched unmated 

Unpaired >> U Words
Unpaired, definition of term: Unpaired
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