" trueness "

1: agreement with fact or reality;

  * e.g., " ... the trueness or falseness of that statement can be easily determined "

•  Synonyms : 

•  facticity,

•  factuality,

•  sooth,

•  truth,

•  verity

•  Antonyms : 

•  falseness,

•  falsity,

•  untruth

1: being exactly as appears or as claimed;

  * e.g., " ... his claim that he's the heir to the throne of Greece can't be true "

•  Synonyms : 

•  authentic,

•  bona fide,

•  certifiable,

•  certified,

•  dinkum,

•  echt,

•  genuine,

•  honest,

•  pukka,

•  real,

•  right,

•  sure-enough

•  Antonyms : 

•  bogus,

•  counterfeit,

•  fake,

•  false,

•  mock,

•  phony,

•  pseudo,

•  sham,

•  spurious,

•  suppositious,

•  supposititious,

•  unauthentic,

•  unreal

2: being in agreement with the truth or a fact or a standard;

  * e.g., " ... if that is true, then we can't get in without a key "

•  Synonyms : 

•  accurate,

•  bang on,

•  correct,

•  dead-on,

•  exact,

•  good,

•  on-target,

•  precise,

•  proper,

•  right,

•  so,

•  spot-on,

•  veracious

•  Antonyms : 

•  false,

•  improper,

•  inaccurate,

•  incorrect,

•  inexact,

•  off,

•  untrue,

•  wrong

3: existing in fact and not merely as a possibility;

  * e.g., " ... the true scope of this environmental problem is far greater than anyone imagined "

•  Synonyms : 

•  actual,

•  concrete,

•  de facto,

•  effective,

•  existent,

•  factual,

•  genuine,

•  real,

•  sure-enough,

•  very

•  Antonyms : 

•  conjectural,

•  hypothetical,

•  ideal,

•  inexistent,

•  nonexistent,

•  platonic,

•  possible,

•  potential,

•  suppositional,

•  theoretical