unsign

Verb

unsign (third-person singular simple present unsigns, present participle unsigning, simple past and past participle unsigned)

1. (intransitive, transitive) To remove one's signature from (something one has signed).
   • Listen : I say we signed, and there's no unsigning.
     And the voyage is never completed, though some may ask
     What creature is this, with the sea through his eyes looking[?]
     […]
     We signed and there's no unsigning.
     Hell, no, but she rolls
     And she rolls us like foam from her flanks, the gay mulatto.1942, Robert Herring, editor, Life and Letters To-Day, volume 34, page 203
   • UNSIGNING AND CHANGING A REPORT SHOULD ONLY BE USED IN VERY RARE CASES IN WHICH FAILURE TO CHANGE THE ORIGINAL REPORT COULD RESULT IN SIGNIFICANT HARM TO THE PATIENT.2010, Manual of Surgical Pathology, 3rd edition, Susan Carole Lester, →ISBN, page 38
2. (or those acting on behalf of a state) To declare void one's signing of (a treaty).
   • Third, transnational legal process could be used to erode the force of the novel US tactic of unsigning the Rome Treaty.2005, Michael Ignatieff, American Exceptionalism and Human Rights, page 137
   • Unsigning the Rome Statute. My happiest moment at State was personally “unsigning” the Rome Statute that created the International Criminal Court (ICC). […] bureaucrats urged at every turn that foreign governments would be extremely upset if we unsigned. In fact, only High Minded Europeans cared...2008, John Bolton, Surrender Is Not an Option: Defending America at the United Nations, page 85