Fussbudgets are individuals who are very particular about the smallest of details and are easily annoyed when things fail to meet their expectations. There are several synonyms for the word fussbudgets, such as perfectionist, stickler, purist, nitpicker, and micromanager. A perfectionist is someone who strives for perfection in everything they do, and a stickler is someone who becomes too strict or overemphasizes a particular idea. A purist is someone who adheres strictly to a particular set of rules or standards, while a nitpicker is someone who is overly critical of small details. Lastly, a micromanager is someone who is too preoccupied with the minutiae. All these synonyms describe individuals who exhibit the characteristics of fussbudgets.