Persnickety meaning is quite hard to grasp. It refers to someone who is exceedingly selective and disapproving. A persnickety individual usually nitpick and sets the bar high when it comes to criteria and excellence. Their attention to detail can be perceived as commendable, but it can also lead
to unreasonable criticism and superfluous dissatisfaction. Being persnickety is typically connected with exact attention to detail but can also be seen as a manifestation of perfectionism.