plummeting Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. falling or dropping quickly and steeply. Example Sentence The buzzer went off sending Danny's hopes plummeting to the ground. More Example Sentences The roller coaster was plummeting down fast. Synonyms falling; dropping; descending Antonyms rising; ascending; soaring Hear It! Say It! Write It! plummeting Switch to cursive Start Share with your friends: