Crossword Genius

Unrivalled description of House of Lords when empty? (8)

Ross

I believe the answer is:

peerless

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'unrivalled' is the definition.
(synonyms)

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(Other definitions for peerless that I've seen before include "Unequalled" , "Without equal or match" , "Having no equals" , "Outstanding" , "Without equal, nonpareil" .)

I've seen this clue in The Times.
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