Particular definition is reasonably tricky to comprehend. It refers to someone who is exceedingly selective and disapproving. A persnickety individual tends
to be meticulous and has high standards when it comes to criteria and excellence. Their attention to detail can be seen as admirable, but it can also intensify excessive criticism and unnecessary dissatisfaction. Being persnickety is commonly related to meticulous attention to detail but can also be seen as a manifestation of obsessiveness.