Pernickety \Per*nick"et*y\, Pernicketty \Per*nick"et*ty\, a. Finical or fussy; full of petty details. [Colloq.] Syn: finical, finicky, fussy, meticulous, painstaking, persnickety, punctilious. [Webster 1913 Suppl. + WordNet 1.5 + PJC]