from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To deny or contradict. See Synonyms at deny.
- transitive v. Law To repudiate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To deny, contradict or repudiate
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To assert the contrary of; to contradict; to deny; -- said of that which has been asserted.
- transitive v. To refuse to confirm; to annul, as a judicial decision, by a contrary judgment of a superior tribunal.
from The Century Dictionary and Cyclopedia
- To deny; contradict.
- In law, to overthrow or annul, as in the reversal of a judicial decision, or where one, having made a contract while an infant, repudiates it after coming of age.
dis- + affirm (Wiktionary)