hissy fit Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. an angry outburst or tantrum usually by a child. Example Sentence She threw a hissy fit when she didn't get her way. More Example Sentences She had a hissy fit over the toy. Synonyms tantrum; outburst; fuss Antonyms calmness; composure Hear It! Say It! Write It! hissy fit Switch to cursive Start Share with your friends: