Answer: dyedinthewool

AnswerCrossword Clue
DYEDINTHEWOOLInherent
DYEDINTHEWOOLThrough and through
DYEDINTHEWOOLUncompromising
DYEDINTHEWOOLImbued thoroughly.
DYEDINTHEWOOLOut-and-out
DYEDINTHEWOOLHaving fixed opinions