资料来源 : pyDict

无瑕疵的,无缺点的,无污点的,清白的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Unblemished \Un*blem"ished\, a.
   Not blemished; pure; spotless; as, an unblemished reputation
   or life. --Addison.

资料来源 : WordNet®

unblemished
     adj : free from physical or moral spots or stains; "an unblemished
           record"; "an unblemished complexion" [ant: {blemished}]