Particular definition is rather difficult to understand. It refers to someone who is immensely picky and critical. A persnickety individual typically be meticulous and has high standards when it comes to standards and flawlessness. Their meticulousness can be seen as admirable, but it can also magnify overly demanding censure and avoidable dissatisfaction. Being persnickety is typically linked to exact focus on specifics but can also be seen as a form of obsessiveness.
persnickety EnglishFrench Dictionary WordReferencecom