validated (adj.)

• accepted
• acknowledged
• actual
• allowed
• approved
• ascertained
• attested
• authenticated
• avowed
• certain
• certified
• confessed
• confirmed
• corroborated
• demonstrated
• determined
• documentary
• effectual
• established
• factual
• fixed
• granted
• historical
• professed
• proved
• proven
• ratified
• real
• received
• recognized
• sealed
• settled
• signed
• substantiated
• sure-enough
• true
• truthful
• unquestionable
• veracious
• verified
• veritable
• warranted