plummeted Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to fall suddenly toward the earth or to a lower level; to plunge; fall hard and fast Example Sentence The stock market plummeted. Synonyms plunge; slump; tumble Antonyms skyrocket; soar Hear It! Say It! Write It! plummeted Switch to cursive Start Share with your friends: