Fussy importance is fairly elusive. It refers to someone who is extremely picky and judgmental. A persnickety individual typically pay strict attention to detail and sets the bar high when it comes to expectations and perfection. Their attention to detail can be regarded as praiseworthy, but it can also lead to extreme criticism and unjustified dissatisfaction. Being persnickety is typically linked to exact attention to detail but can also be seen as a type of pedantry.