Demanding definition is reasonably hard to grasp. It refers to someone who is vitally choosy and fault-finding. A persnickety individual usually be meticulous and does not settle for less when it comes to expectations and flawlessness. Their meticulousness can be seen as admirable, but it can also lead to unreasonable disapproval and unjustified dissatisfaction. Being persnickety is commonly associated with exact attention to detail but can also be seen as a type of pedantry.
