Fussy definition is somewhat elusive. It refers to someone who is vitally meticulous and fault-finding. A persnickety individual frequently pay strict attention to detail and has high standards when it comes to quality and flawlessness. Their fastidious nature can be perceived as commendable, but it can also exacerbate unreasonable disapproval and unjustified dissatisfaction. Being persnickety is typically associated with meticulous focus on specifics but can also be seen as a form of obsessiveness.

Persnickety Definition Meaning MerriamWebster