1. unnecessary worry or concern about unimportant matters
2. a display of unnecessary or excessive concern, excitement, or activity

1. to worry unnecessarily or pay too much attention to unimportant details
2. to move about or handle something nervously or restlessly

Examples

• Don’t make such a fuss about a small mistake.
• The wedding preparations caused quite a fuss.
• Stop fussing over your appearance – you look fine.
• She tends to fuss with her hair when she’s nervous.
• There’s no need to fuss about being five minutes late.
• The baby made a fuss when it was time for bed.
• He was fussing with the remote control trying to fix it.