" inconclusiveness "

1: as in ineffectiveness, ineffectuality;

•  Synonyms : 

•  ineffectiveness,

•  ineffectuality,

•  ineffectualness,

•  invalidity,

•  shakiness,

•  unsoundness,

•  feebleness,

•  powerlessness,

•  weakness

•  Antonyms : 

•  authority,

•  cogency,

•  conclusiveness,

•  convincingness,

•  effectiveness,

•  force,

•  forcefulness,

•  persuasion,

•  persuasiveness,

•  suasiveness,

•  impact,

•  might,

•  power,

•  punch,

•  strength,

•  weight,

•  believability,

•  credibility,

•  soundness,

•  validity

1: not showing that something is certainly true;

  * e.g., " ... The results of the test proved inconclusive. "

•  Synonyms : 

•  indecisive,

•  approximate,

•  approximative,

•  ballpark,

•  imprecise,

•  inaccurate,

•  inexact,

•  loose,

•  squishy,

•  erroneous,

•  false,

•  incorrect,

•  off,

•  wrong,

•  general,

•  indefinable,

•  indefinite,

•  indeterminate,

•  indistinct,

•  mushy,

•  undefined,

•  undetermined,

•  unsettled,

•  vague,

•  faulty,

•  flawed,

•  mistaken,

•  specious,

•  distorted,

•  fallacious,

•  misleading,

•  doubtful,

•  dubious,

•  questionable,

•  uncertain,

•  debatable,

•  disputable,

•  invalidated,

•  unconfirmed,

•  unsubstantiated,

•  unsupported

•  Antonyms : 

•  clear-cut,

•  conclusive,

•  decisive,

•  definable,

•  defined,

•  definite,

•  certain,

•  incontestable,

•  indubitable,

•  positive,

•  sure,

•  undeniable,

•  unquestionable,

•  correct,

•  errorless,

•  factual,

•  right,

•  sound,

•  true,

•  valid,

•  incontrovertible,

•  indisputable,

•  irrefutable,

•  absolute,

•  unqualified,

•  confirmed,

•  corroborated,

•  determined,

•  established,

•  substantiated,

•  supported,

•  validated,

•  accurate,

•  dead,

•  dead-on,

•  exact,

•  precise,

•  ultraprecise,

•  veracious