Fussy importance is rather tricky to comprehend. It refers to someone who is immensely selective and fault-finding. A persnickety individual frequently nitpick and does not settle for less when it comes to criteria and perfection. Their meticulousness can be perceived as commendable, but it can also intensify unreasonable censure and unnecessary dissatisfaction. Being persnickety is often associated with detailed attention to detail but can also be seen as a type of perfectionism.
Persnickety definition in American English