per ‧ snick ‧ e ‧ ty /pəˈsnɪkəti, pəˈsnɪkɪti $ pər-/ BrE AmE adjective American English
[ Date: 1900-2000 ; Origin: pernickety 'persnickety' (19-21 centuries) , perhaps from particular ]
worrying too much about details that are not important – used to show disapproval