" identicalness "

1: the state of being exactly alike;

  * e.g., " ... the identicalness of your answers to your friend's suggests that someone copied "

•  Synonyms : 

•  identity,

•  sameness

•  Antonyms : 

•  difference,

•  disagreement,

•  discrepancy,

•  disparateness,

•  disparity,

•  dissimilarity,

•  unlikeness

1: being one and not another;

  * e.g., " ... both families wanted the identical puppy and weren't accepting the argument that its littermates were just as good "

•  Synonyms : 

•  same,

•  selfsame,

•  very

•  Antonyms : 

•  another,

•  different,

•  other

2: resembling another in every respect;

  * e.g., " ... identical dresses whose only difference is a designer label that fetches a high price "

•  Synonyms : 

•  coequal,

•  duplicate,

•  equal,

•  even,

•  indistinguishable,

•  same

•  Antonyms : 

•  different,

•  disparate,

•  dissimilar,

•  distant,

•  distinct,

•  distinctive,

•  distinguishable,

•  diverse,

•  nonidentical,

•  other,

•  unalike,

•  unlike