Pernickety Definition Meaning Synonyms Demanding significance is fairly difficult to understand. It refers to someone who is immensely meticulous and judgmental. A persnickety individual typically nitpick and sets the bar high when it comes to quality and perfection. Their meticulousness can be perceived as commendable, but it can also magnify excessive criticism and unjustified dissatisfaction. Being persnickety is often connected with meticulous focus on specifics but can also be seen as a manifestation of pedantry.