ADJECTIVE (2)

1. of persons; not subject to change;
- Example: "a confirmed bachelor"
- Example: "a confirmed invalid"

2. having been established or made firm or received the rite of confirmation;
- Example: "confirmed reservations"
- Example: "received confirmed reports of casualties"
- Example: "a confirmed Catholic"

WordNet (r) 3.0 (2006):

confirmed
    adj 1: of persons; not subject to change; "a confirmed
           bachelor"; "a confirmed invalid"
    2: having been established or made firm or received the rite of
       confirmation; "confirmed reservations"; "received confirmed
       reports of casualties"; "a confirmed Catholic" [ant:
       unconfirmed]

Moby Thesaurus II by Grady Ward, 1.0:

121 Moby Thesaurus words for "confirmed":
   accepted, accustomed, acknowledged, actual, admitted, affirmed,
   allowed, approved, ascertained, attested, authenticated, avowed,
   borne out, categorically true, certain, certified, chronic,
   circumstantiated, conceded, confessed, corroborated, countersigned,
   deep-dyed, deep-engraven, deep-fixed, deep-grounded, deep-laid,
   deep-rooted, deep-seated, deep-set, deep-settled, demonstrated,
   determined, documentary, dyed-in-the-wool, effectual, embedded,
   embossed, endorsed, engrafted, engraved, entrenched, established,
   etched, factual, fast, firmly established, fixed, granted, graven,
   habituated, historical, implanted, impressed, imprinted,
   incorrigible, inculcated, indelibly impressed, infixed, ingrained,
   ingrown, instilled, inveterate, inwrought, irreversible,
   long-established, not in error, notarized, objectively true,
   old-line, on a rock, on bedrock, professed, proved, proven,
   ratified, real, received, recognized, rooted, sealed, set, settled,
   settled in habit, shown, signed, stabilized, stamped,
   substantiated, sure-enough, sworn, sworn and affirmed, sworn to,
   tested, thorough, tried, tried and true, true, true as gospel,
   truthful, unconfuted, undenied, underwritten, undoubted,
   unerroneous, unfallacious, unfalse, unmistaken, unquestionable,
   unrefuted, validated, veracious, verified, veritable, vested,
   warranted, well-established, well-founded, well-grounded, well-set,
   well-settled