Particular definition is fairly tricky to comprehend. It refers to someone who is extremely particular and nitpicking. A persnickety individual frequently pay strict attention to detail and has high standards when it comes to quality and excellence. Their meticulousness can be perceived as commendable, but it can also intensify overly demanding criticism and unjustified dissatisfaction. Being persnickety is often associated with meticulous focus on specifics but can also be seen as a type of pedantry.