Persnickety sense is reasonably tricky to comprehend. It refers to someone who is extremely picky and critical. A persnickety individual tends to pay strict attention to detail and sets the bar high when it comes to expectations and flawlessness. Their fastidious nature can be regarded as praiseworthy, but it can also intensify extreme disapproval and unnecessary dissatisfaction. Being persnickety is often connected with detailed attention to detail but can also be seen as a type of perfectionism.