" one-sidedness "

1: an attitude that always favors one way of feeling or acting especially without considering any other possibilities;

  * e.g., " ... the obvious one-sidedness of the host means that his radio talk show isn't the open forum that he pretends it is "

•  Synonyms : 

•  bias,

•  favor,

•  nonobjectivity,

•  parti pris,

•  partiality,

•  partisanship,

•  ply,

•  prejudice,

•  tendentiousness

•  Antonyms : 

•  impartiality,

•  neutrality,

•  objectivity,

•  open-mindedness,

•  unbiasedness

1: inclined to favor one side over another;

  * e.g., " ... my neighbor's account of how the feud got started was somewhat one-sided "

•  Synonyms : 

•  biased,

•  parti pris,

•  partial,

•  partisan,

•  prejudiced

•  Antonyms : 

•  disinterested,

•  equal,

•  equitable,

•  evenhanded,

•  fair,

•  impartial,

•  neutral,

•  nonpartisan,

•  objective,

•  unbiased,

•  unprejudiced