Wordnet 3.0
ADJECTIVE (1)
1. 
 such that comparison is impossible; 
 unsuitable for comparison or lacking features that can be compared; 
- Example: "an incomparable week of rest and pleasure"- Example: "the computer proceeds with its incomparable logic and efficiency"- Example: "this report is incomparable with the earlier ones because of different breakdowns of the data"[syn: incomparable, uncomparable]
WordNet (r) 3.0 (2006):
uncomparable
    adj 1: such that comparison is impossible; unsuitable for
           comparison or lacking features that can be compared; "an
           incomparable week of rest and pleasure"; "the computer
           proceeds with its incomparable logic and efficiency";
           "this report is incomparable with the earlier ones
           because of different breakdowns of the data" [syn:
           incomparable, uncomparable] [ant: comparable]