Fussy meaning is reasonably elusive. It refers to someone who is exceptionally selective and disapproving. A persnickety individual typically be fastidious and sets the bar high when it comes to expectations and flawlessness. Their fastidious nature can be regarded as praiseworthy, but it can also lead to unreasonable criticism and avoidable dissatisfaction. Being persnickety is often linked to meticulous attention to detail but can also be seen as a form of obsessiveness.