fussing Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. showing unnecessary concern or worry about something. Example Sentence She was fussing because he was two minutes late. More Example Sentences She is fussing about her messy room. Synonyms worrying; fretting; fuss Antonyms calm; relax; ignore Hear It! Say It! Write It! fussing Switch to cursive Start Share with your friends: