disannulment
dis·an·nul
(dĭs′ə-nŭl′)tr.v. dis·an·nulled, dis·an·null·ing, dis·an·nuls
To annul or cancel.
dis′an·nul′ment n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.