Crossword Genius

Unmatched when it comes to eccentricity? (3)

Ross

I believe the answer is:

odd

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'unmatched' is the definition.
(synonyms)

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(Other definitions for odd that I've seen before include "Eccentric or unpaired" , "Casual" , "Not matching" , "Left over" , "Not even; strange" .)

I've seen this clue in the Evening Standard.
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