Pickiness is the tendency to be highly selective or particular, especially when it comes to choosing food, clothing, or other items. Some synonyms for pickiness could include fussiness, finickiness, choosiness, fastidiousness, discrimination, selectiveness, and nitpicking. These words all suggest a high level of attention to detail and a desire for the perfect choice. Other related words might include precision, exactness, scrupulousness, and meticulousness. While being picky can sometimes be seen as a negative quality, it can also be an asset when it comes to making informed decisions and choosing the best options available.