Persnickety definition is fairly difficult to understand. It refers to someone who is exceedingly picky and nitpicking. A persnickety individual tends to be meticulous and has high standards when it comes to expectations and flawlessness. Their fastidious nature can be perceived as commendable, but it can also lead to overly demanding censure and superfluous dissatisfaction. Being persnickety is frequently connected with detailed focus on specifics but can also be seen as a type of obsessiveness.