Fussy definition is rather difficult to understand. It refers to someone who is exceptionally choosy and critical. A persnickety individual tends to be fastidious and has high standards when it comes to expectations and perfection. Their meticulousness can be viewed as laudable, but it can also magnify extreme censure and superfluous dissatisfaction. Being persnickety is regularly associated with precise focus on specifics but can also be seen as a type of perfectionism.

Persnickety definition in American English