" indistinguishable "

1: not perceptible by a sense or by the mind;

  * e.g., " ... indistinguishable differences that can be measured only electronically "

•  Synonyms : 

•  impalpable,

•  imperceptible,

•  inappreciable,

•  insensible

•  Antonyms : 

•  appreciable,

•  discernible,

•  palpable,

•  perceptible,

•  ponderable,

•  sensible

2: not seen or understood clearly;

  * e.g., " ... indistinguishable shapes in the fog "

•  Synonyms : 

•  blear,

•  bleary,

•  blurry,

•  dim,

•  faint,

•  foggy,

•  fuzzy,

•  gauzy,

•  hazy,

•  indefinite,

•  indistinct,

•  misty,

•  murky,

•  nebulous,

•  obscure,

•  opaque,

•  pale,

•  shadowy,

•  unclear,

•  undefined,

•  undetermined,

•  vague

•  Antonyms : 

•  clear,

•  definite,

•  pellucid

3: resembling another in every respect;

  * e.g., " ... a synthetic fabric that supposedly is indistinguishable from real silk "

•  Synonyms : 

•  coequal,

•  duplicate,

•  equal,

•  even,

•  identical,

•  same

•  Antonyms : 

•  different,

•  disparate,

•  dissimilar,

•  distant,

•  distinct,

•  distinctive,

•  distinguishable,

•  diverse,

•  nonidentical,

•  other,

•  unalike,

•  unlike