Persnicketiness Definition Meaning MerriamWebsterFussy significance is rather elusive. It refers to someone who is vitally choosy and nitpicking. A persnickety individual tends to nitpick and sets the bar high when it comes to quality and perfection. Their attention to detail can be perceived as commendable, but it can also exacerbate unreasonable disapproval and superfluous dissatisfaction. Being persnickety is often related to thorough attention to detail but can also be seen as a manifestation of perfectionism.