Particular meaning is somewhat hard to grasp. It refers to someone who is vitally selective and fault-finding. A persnickety individual frequently nitpick and does not settle for less when it comes to expectations and flawlessness. Their fastidious nature can be regarded as praiseworthy, but it can also magnify unreasonable censure and superfluous dissatisfaction. Being persnickety is frequently linked to meticulous focus on specifics but can also be seen as a type of obsessiveness.