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Choosy meaning
is rather elusive. It refers to someone who is exceptionally picky and fault-finding. A persnickety individual usually be fastidious 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 magnify excessive criticism and superfluous dissatisfaction. Being persnickety is often related to thorough focus on specifics but can also be seen as a form of pedantry.
Persnickety definition in American English