substantiating

/səbˈstænʃiˌeɪtɪŋ/
adjective
  1. Serving to provide evidence or proof for a claim or statement.
    • Without any substantiating evidence, the theory remained just a guess.
    • The lawyer presented substantiating documents that proved her client's innocence.
    • The report included substantiating data from multiple scientific studies.
What does "substantiating" mean? | whatsthatwordmean | whatsthatwordmean