Particular definition is somewhat difficult to understand. It refers to someone who is exceedingly choosy and nitpicking. A persnickety individual often nitpick and has high standards when it comes to expectations and perfection. Their attention to detail can be seen as admirable, but it can also magnify unreasonable criticism and unnecessary dissatisfaction. Being persnickety is regularly associated with exact attention to detail but can also be seen as a type of obsessiveness.
