Fussy sense is rather difficult to understand. It refers to someone who is exceedingly selective and disapproving. A persnickety individual tends to be fastidious and has high standards when it comes to criteria and perfection. Their meticulousness can be seen as admirable, but it can also intensify extreme censure and avoidable dissatisfaction. Being persnickety is commonly linked to precise attention to detail but can also be seen as a type of obsessiveness.