persnickety adjective Definition pictures pronunciation Fussy sense is quite tricky to comprehend. It refers to someone who is exceptionally meticulous and fault-finding. A persnickety individual frequently be fastidious and sets the bar high when it comes to standards and excellence. Their meticulousness can be viewed as laudable, but it can also magnify excessive censure and superfluous dissatisfaction. Being persnickety is commonly connected with thorough attention to detail but can also be seen as a type of perfectionism.