pernickety

adj

1. (Commonwealth, Ireland, UK)Fussy; paying undue attention to minor details; fastidious.

   “‘You must forgive me,’ he said. ‘I take a ridiculous pleasure in what I eat and drink. It comes partly from being a bachelor, but mostly from a habit of taking a lot of trouble over details. It’s very pernickety and old-maidish really, but then when I’m working I generally have to eat my meals alone and it makes them more interesting when one takes trouble.’”

2. Requiring attention to minor details.