Persnickety definition in American English Persnickety sense is reasonably hard to grasp. It refers to someone who is vitally particular and fault-finding. A persnickety individual often pay strict attention to detail and does not settle for less when it comes to expectations and flawlessness. Their meticulousness can be seen as admirable, but it can also magnify extreme censure and avoidable dissatisfaction. Being persnickety is frequently linked to thorough focus on specifics but can also be seen as a
manifestation of obsessiveness.