She was 'fanatically' devoted to her job.
a religious 'fanatic' [='extremist']
He is 'fanatical about' boating.
(..) this time at Winterfell and this time for good. We'd be most grateful for any support you could provide the queen. I suppose it's hard for a fanatic to admit a mistake. Isn't that the whole point of being a fanatic? You're always right. Everything is the Lord's will. Everything is the Lord's will. (..)2016 TvShow: Game of Thrones Title: The Door Season: 6 Episode 5