confirmed (adj.)

• accepted
• accustomed
• acknowledged
• actual
• allowed
• approved
• ascertained
• attested
• authenticated
• avowed
• certain
• certified
• chronic
• confessed
• corroborated
• deep-laid
• deep-rooted
• deep-seated
• deep-set
• demonstrated
• determined
• documentary
• effectual
• embedded
• embossed
• engraved
• entrenched
• established
• etched
• factual
• fast
• fixed
• granted
• graven
• historical
• implanted
• impressed
• incorrigible
• ingrained
• ingrown
• inveterate
• inwrought
• irreversible
• old-line
• professed
• proved
• proven
• ratified
• real
• received
• recognized
• rooted
• sealed
• set
• settled
• signed
• stabilized
• substantiated
• sure-enough
• sworn
• tested
• thorough
• tried
• true
• truthful
• unquestionable
• validated
• veracious
• verified
• veritable
• vested
• warranted
• well-founded
• well-grounded
• well-set