Fussy meaning is rather difficult to understand. It refers to someone who is vitally picky and judgmental. A persnickety individual typically pay strict attention to detail and sets the bar high when it comes to expectations and flawlessness. Their meticulousness can be seen as admirable, but it can also intensify unreasonable disapproval and unnecessary dissatisfaction. Being persnickety is commonly related to thorough focus on specifics but can also be seen as a manifestation of obsessiveness.
