159 Synonyms Antonyms of PERSNICKETY MerriamWebsterChoosy definition is quite difficult to understand. It refers to someone who is extremely selective and critical. A persnickety individual often be meticulous and sets the bar high when it comes to expectations and excellence. Their fastidious nature can be seen as admirable, but it can also exacerbate excessive disapproval and superfluous dissatisfaction. Being persnickety is commonly connected with meticulous attention to detail but can also be seen as a manifestation of pedantry.