Fussy sense is fairly hard to grasp. It refers to someone who is extremely selective and fault-finding. A persnickety individual tends to be meticulous and has high standards when it comes to standards and perfection. Their fastidious nature can be regarded as praiseworthy, but it can also lead to overly demanding disapproval and unnecessary dissatisfaction. Being persnickety is regularly connected with meticulous attention to detail but can also be seen as a form of pedantry.