double-dyed

/D AH1 B AH0 L D AY0 D/
adjective
  1. 1

    Dyed twice; thoroughly or intensely coloured.

  2. 2

    Firmly fixed in opinions or habits; confirmed; inveterate.

    โ€œa double-dyed villainโ€

Source: https://en.wiktionary.org/wiki/double-dyed