unsign Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to remove a signature from a document. Example Sentence She had to unsign the contract because of a mistake. More Example Sentences The company will unsign the contract today. Synonyms void; cancel; rescind Antonyms sign; endorse Hear It! Say It! Write It! unsign Switch to cursive Start Share with your friends: