Persnickety Definition Meaning MerriamWebsterDemanding sense is quite difficult to understand. It refers to someone who is exceptionally particular and fault-finding. A persnickety individual usually be fastidious and does not settle for less when it comes to expectations and perfection. Their fastidious nature can be viewed as laudable, but it can also magnify unwarranted disapproval and unjustified dissatisfaction. Being persnickety is often related to exact focus on specifics but can also be seen as a manifestation of perfectionism.