Finicality is a word that describes overly picky or particular behavior. Synonyms for this word include fussiness, fastidiousness, obsessiveness, and quirkiness. These are all words that describe someone who is excessively concerned with details or perfection, particularly when it comes to matters of taste or personal preference. Other synonyms for finicality might include pettiness, punctiliousness, or even snobbery, depending on the context. Whether you're trying to describe someone who is being overly finicky about their food, their clothing, or any other aspect of their personal life, these synonyms can help you to convey the meaning clearly and effectively.