splitting adj. quibbling, (over-)fussy, hypercritical, petty, captious, carping, fault-finding, finicky, (over)nice, fastidious, cavilling, niggling, Colloq nit-picking His hair-splitting attention to detail gets on my nerves
HAIR
Meaning of HAIR in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012