" faultless "

1: being entirely without fault or flaw;

  * e.g., " ... this 18th-century chest of drawers is considered a faultless example of early American craftsmanship "

•  Synonyms : 

•  absolute,

•  flawless,

•  ideal,

•  immaculate,

•  impeccable,

•  indefectible,

•  irreproachable,

•  letter-perfect,

•  perfect,

•  picture-book,

•  picture-perfect,

•  seamless,

•  unblemished

•  Antonyms : 

•  amiss,

•  bad,

•  censurable,

•  defective,

•  faulty,

•  flawed,

•  imperfect,

•  reproachable

2: free from guilt or blame;

  * e.g., " ... I may have broken my share of things in the past, but in this instance I am entirely faultless "

•  Synonyms : 

•  blameless,

•  cleanhanded,

•  clear,

•  guiltless,

•  impeccable,

•  inculpable,

•  innocent,

•  irreproachable,

•  lily-white

•  Antonyms : 

•  guilty