1. in a way that shows excessive concern with small details or unimportant matters
2. in a way that is easily upset or bothered by minor things

Examples

• She fussily arranged the flowers in the vase, adjusting each stem multiple times.
• He fussily complained about the temperature of his coffee.
• The elderly woman fussily inspected every item before putting it in her shopping cart.
• They fussily debated the proper way to fold the napkins.
• He fussily adjusted his tie and collar before the interview.
• She fussily organized her desk, moving papers back and forth.
• The critic fussily pointed out every minor grammatical error in the manuscript.