Choosy meaning is somewhat elusive. It refers to someone who is exceedingly particular and fault-finding. A persnickety individual tends to pay strict attention to detail and sets the bar high when it comes to quality and flawlessness. Their fastidious nature can be regarded as praiseworthy, but it can also intensify overly demanding disapproval and superfluous dissatisfaction. Being persnickety is commonly connected with precise focus on specifics but can also be seen as a manifestation of obsessiveness.
