substantiate

Verb

• establish or strengthen as with new evidence or facts
• represent in bodily form
  • "The painting substantiates the feelings of the artist"
• make real or concrete; give reality or substance to
  • "our ideas must be substantiated into actions"
• solidify, firm, or strengthen
  • "The president's trip will substantiate good relations with the former enemy country"
• To verify something by supplying evidence; to authenticate or corroborate
• To give material form or substance to something; to embody; to record in documents

Synonyms

actualise, actualize, affirm, body forth, confirm, corroborate, embody, incarnate, realise, realize, support, sustain

Antonyms

negate