Fussy meaning is somewhat hard to grasp. It refers to someone who is immensely meticulous and fault-finding. A persnickety individual often nitpick and does not settle for less when it comes to quality and perfection. Their attention to detail can be viewed as laudable, but it can also lead to overly demanding criticism and avoidable dissatisfaction. Being persnickety is commonly related to thorough focus on specifics but can also be seen as a type of perfectionism.