Source : Webster's Revised Unabridged Dictionary (1913)

Double-dyed \Dou"ble-dyed`\, a.
   Dyed twice; thoroughly or intensely colored; hence; firmly
   fixed in opinions or habits; as, a double-dyed villain.

Source : WordNet®

double-dyed
     adj : without qualification; used informally as (often pejorative)
           intensifiers; "an arrant fool"; "a complete coward"; "a
           consummate fool"; "a double-dyed villain"; "gross
           negligence"; "a perfect idiot"; "pure folly"; "what a
           sodding mess"; "stark staring mad"; "a thoroughgoing
           villain"; "utter nonsense" [syn: {arrant(a)}, {complete(a)},
            {consummate(a)}, {double-dyed(a)}, {everlasting(a)}, {gross(a)},
            {perfect(a)}, {pure(a)}, {sodding(a)}, {stark(a)}, {staring(a)},
            {thoroughgoing(a)}, {utter(a)}]