Choosy definition is somewhat difficult to understand. It refers to someone who is immensely meticulous and judgmental. A persnickety individual often nitpick and sets the bar high when it comes to expectations and flawlessness. Their fastidious nature can be regarded as praiseworthy, but it can also intensify extreme disapproval and superfluous dissatisfaction. Being persnickety is commonly related to precise focus on specifics but can also be seen as a form of obsessiveness.
