Our new 'Word Of The Day' article update : nitty , adj :
Full of nits. (chiefly Britain, slang) Foolish, inane. […] (Excessively) detailed, specific; fastidious, fussy, nit-picky. (poker slang) Of a poker player: playing in an overly cautious and reactive manner. […] (obsolete, rare) Shining; elegant, spruce.