jettisoned Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to throw away or call off; to throw from a ship or airplane to make it lighter or more stable Example Sentence I jettisoned my plans to wash the car when it started raining. Synonyms abandon; cancel; discard; scrap Antonyms keep; retain; salvage; rescue Hear It! Say It! Write It! jettisoned Switch to cursive Start Share with your friends: