" corroboratory "

1: serving to give support to the truth or factualness of something;

  * e.g., " ... offered corroboratory testimony for the defendant's alibi "

•  Synonyms : 

•  confirmational,

•  confirmatory,

•  confirming,

•  corroborating,

•  corroborative,

•  probative,

•  probatory,

•  substantiating,

•  supporting,

•  supportive,

•  verifying,

•  vindicating

•  Antonyms : 

•  confuting,

•  disproving,

•  refuting

1: to give evidence or testimony to the truth or factualness of;

  * e.g., " ... the witnesses corroborated the policeman's testimony "

•  Synonyms : 

•  argue,

•  attest,

•  authenticate,

•  bear out,

•  certify,

•  confirm,

•  substantiate,

•  support,

•  validate,

•  verify,

•  vindicate

•  Antonyms : 

•  disprove,

•  rebut,

•  refute

2: to provide evidence or information for (as a claim or idea);

  * e.g., " ... my personal experience does not corroborate your faith in the essential goodness of people "

•  Synonyms : 

•  back,

•  bolster,

•  buttress,

•  reinforce,

•  shore (up),

•  substantiate,

•  support

•  Antonyms : 

• (N/A)