Substantiating Synonyms and Antonyms

Establish or strengthen as with new evidence or facts
(Verb)
Synonyms:
  1. verifying
  2. supporting
  3. proving
  4. validating
  5. establishing
  6. confirming
  7. corroborating
  8. affirming
  9. vouching
  10. demonstrating
  11. showing
  12. materializing
  13. evidencing
  14. justifying
  15. sustaining
  16. endorsing
  17. attesting
  18. assuring
To present evidence in support of
(Verb)
Synonyms:
  1. corroborating
  2. buttressing
  3. backing